Home / 121,081,290.25-167,092,136.61-66,077,146.75

Finding the Fourth Proportional to 121,081,290.25, 167,092,136.61 and 66,077,146.75

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Solution

The fourth proportional to 121,081,290.25, 167,092,136.61 and 66,077,146.75 is: 91,186,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,081,290.25 : 167,092,136.61 = 66,077,146.75 : x
  2. Step 2: Convert to fraction form
    121,081,290.25/167,092,136.61 = 66,077,146.75/x
  3. Step 3: Cross multiply
    121,081,290.25x = 167,092,136.61 × 66,077,146.75
  4. Step 4: Simplify right side
    121,081,290.25x = 11,040,971,631,219,632
  5. Step 5: Solve for x
    x = 11,040,971,631,219,632/121,081,290.25
  6. Step 6: Final answer
    x = 91,186,438.54

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.