Home / 126,008.40-188,891.10-72,645.60

Finding the Fourth Proportional to 126,008.40, 188,891.10 and 72,645.60

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Solution

The fourth proportional to 126,008.40, 188,891.10 and 72,645.60 is: 108,898.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,008.40 : 188,891.10 = 72,645.60 : x
  2. Step 2: Convert to fraction form
    126,008.40/188,891.10 = 72,645.60/x
  3. Step 3: Cross multiply
    126,008.40x = 188,891.10 × 72,645.60
  4. Step 4: Simplify right side
    126,008.40x = 13,722,107,294.16
  5. Step 5: Solve for x
    x = 13,722,107,294.16/126,008.40
  6. Step 6: Final answer
    x = 108,898.35

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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.