Home / 125,147.27-172,719.65-71,419.97

Finding the Fourth Proportional to 125,147.27, 172,719.65 and 71,419.97

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Solution

The fourth proportional to 125,147.27, 172,719.65 and 71,419.97 is: 98,568.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,147.27 : 172,719.65 = 71,419.97 : x
  2. Step 2: Convert to fraction form
    125,147.27/172,719.65 = 71,419.97/x
  3. Step 3: Cross multiply
    125,147.27x = 172,719.65 × 71,419.97
  4. Step 4: Simplify right side
    125,147.27x = 12,335,631,536.36
  5. Step 5: Solve for x
    x = 12,335,631,536.36/125,147.27
  6. Step 6: Final answer
    x = 98,568.93

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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.