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Finding the Fourth Proportional to 105,532.40, 158,687.40 and 88,425.20

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Solution

The fourth proportional to 105,532.40, 158,687.40 and 88,425.20 is: 132,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,532.40 : 158,687.40 = 88,425.20 : x
  2. Step 2: Convert to fraction form
    105,532.40/158,687.40 = 88,425.20/x
  3. Step 3: Cross multiply
    105,532.40x = 158,687.40 × 88,425.20
  4. Step 4: Simplify right side
    105,532.40x = 14,031,965,082.48
  5. Step 5: Solve for x
    x = 14,031,965,082.48/105,532.40
  6. Step 6: Final answer
    x = 132,963.57

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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.