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Finding the Fourth Proportional to 125,114.44, 187,200.81 and 87,747.45

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Solution

The fourth proportional to 125,114.44, 187,200.81 and 87,747.45 is: 131,290.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,114.44 : 187,200.81 = 87,747.45 : x
  2. Step 2: Convert to fraction form
    125,114.44/187,200.81 = 87,747.45/x
  3. Step 3: Cross multiply
    125,114.44x = 187,200.81 × 87,747.45
  4. Step 4: Simplify right side
    125,114.44x = 16,426,393,715.43
  5. Step 5: Solve for x
    x = 16,426,393,715.43/125,114.44
  6. Step 6: Final answer
    x = 131,290.95

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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.