Home / 121,072,919.22-167,084,158.08-66,072,318.66

Finding the Fourth Proportional to 121,072,919.22, 167,084,158.08 and 66,072,318.66

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Solution

The fourth proportional to 121,072,919.22, 167,084,158.08 and 66,072,318.66 is: 91,181,725.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,072,919.22 : 167,084,158.08 = 66,072,318.66 : x
  2. Step 2: Convert to fraction form
    121,072,919.22/167,084,158.08 = 66,072,318.66/x
  3. Step 3: Cross multiply
    121,072,919.22x = 167,084,158.08 × 66,072,318.66
  4. Step 4: Simplify right side
    121,072,919.22x = 11,039,637,735,699,574
  5. Step 5: Solve for x
    x = 11,039,637,735,699,574/121,072,919.22
  6. Step 6: Final answer
    x = 91,181,725.91

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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.