Home / 138,071.13-206,937.09-71,473.29

Finding the Fourth Proportional to 138,071.13, 206,937.09 and 71,473.29

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Solution

The fourth proportional to 138,071.13, 206,937.09 and 71,473.29 is: 107,122.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,071.13 : 206,937.09 = 71,473.29 : x
  2. Step 2: Convert to fraction form
    138,071.13/206,937.09 = 71,473.29/x
  3. Step 3: Cross multiply
    138,071.13x = 206,937.09 × 71,473.29
  4. Step 4: Simplify right side
    138,071.13x = 14,790,474,645.33
  5. Step 5: Solve for x
    x = 14,790,474,645.33/138,071.13
  6. Step 6: Final answer
    x = 107,122.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.