Home / 125,397.13-188,124.33-54,331.57

Finding the Fourth Proportional to 125,397.13, 188,124.33 and 54,331.57

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Solution

The fourth proportional to 125,397.13, 188,124.33 and 54,331.57 is: 81,509.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,397.13 : 188,124.33 = 54,331.57 : x
  2. Step 2: Convert to fraction form
    125,397.13/188,124.33 = 54,331.57/x
  3. Step 3: Cross multiply
    125,397.13x = 188,124.33 × 54,331.57
  4. Step 4: Simplify right side
    125,397.13x = 10,221,090,204.10
  5. Step 5: Solve for x
    x = 10,221,090,204.10/125,397.13
  6. Step 6: Final answer
    x = 81,509.76

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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.