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Finding the Fourth Proportional to 125,707, 188,523.59 and 36,939.40

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Solution

The fourth proportional to 125,707, 188,523.59 and 36,939.40 is: 55,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,707 : 188,523.59 = 36,939.40 : x
  2. Step 2: Convert to fraction form
    125,707/188,523.59 = 36,939.40/x
  3. Step 3: Cross multiply
    125,707x = 188,523.59 × 36,939.40
  4. Step 4: Simplify right side
    125,707x = 6,963,948,392.79
  5. Step 5: Solve for x
    x = 6,963,948,392.79/125,707
  6. Step 6: Final answer
    x = 55,398.25

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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.