Home / 121,081,289.25-167,092,135.22-66,077,145.75

Finding the Fourth Proportional to 121,081,289.25, 167,092,135.22 and 66,077,145.75

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Solution

The fourth proportional to 121,081,289.25, 167,092,135.22 and 66,077,145.75 is: 91,186,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,081,289.25 : 167,092,135.22 = 66,077,145.75 : x
  2. Step 2: Convert to fraction form
    121,081,289.25/167,092,135.22 = 66,077,145.75/x
  3. Step 3: Cross multiply
    121,081,289.25x = 167,092,135.22 × 66,077,145.75
  4. Step 4: Simplify right side
    121,081,289.25x = 11,040,971,372,775,840
  5. Step 5: Solve for x
    x = 11,040,971,372,775,840/121,081,289.25
  6. Step 6: Final answer
    x = 91,186,437.15

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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.