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Finding the Fourth Proportional to 125,144.76, 187,701.48 and 40,897.88

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Solution

The fourth proportional to 125,144.76, 187,701.48 and 40,897.88 is: 61,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,144.76 : 187,701.48 = 40,897.88 : x
  2. Step 2: Convert to fraction form
    125,144.76/187,701.48 = 40,897.88/x
  3. Step 3: Cross multiply
    125,144.76x = 187,701.48 × 40,897.88
  4. Step 4: Simplify right side
    125,144.76x = 7,676,592,604.86
  5. Step 5: Solve for x
    x = 7,676,592,604.86/125,144.76
  6. Step 6: Final answer
    x = 61,341.70

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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.