Home / 121,619,345.72-167,851,395.23-74,568,098.30

Finding the Fourth Proportional to 121,619,345.72, 167,851,395.23 and 74,568,098.30

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Solution

The fourth proportional to 121,619,345.72, 167,851,395.23 and 74,568,098.30 is: 102,914,213.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,619,345.72 : 167,851,395.23 = 74,568,098.30 : x
  2. Step 2: Convert to fraction form
    121,619,345.72/167,851,395.23 = 74,568,098.30/x
  3. Step 3: Cross multiply
    121,619,345.72x = 167,851,395.23 × 74,568,098.30
  4. Step 4: Simplify right side
    121,619,345.72x = 12,516,359,338,090,694
  5. Step 5: Solve for x
    x = 12,516,359,338,090,694/121,619,345.72
  6. Step 6: Final answer
    x = 102,914,213.73

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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.