Home / 102,809.28-141,872.40-60,372.48

Finding the Fourth Proportional to 102,809.28, 141,872.40 and 60,372.48

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Solution

The fourth proportional to 102,809.28, 141,872.40 and 60,372.48 is: 83,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,809.28 : 141,872.40 = 60,372.48 : x
  2. Step 2: Convert to fraction form
    102,809.28/141,872.40 = 60,372.48/x
  3. Step 3: Cross multiply
    102,809.28x = 141,872.40 × 60,372.48
  4. Step 4: Simplify right side
    102,809.28x = 8,565,188,631.55
  5. Step 5: Solve for x
    x = 8,565,188,631.55/102,809.28
  6. Step 6: Final answer
    x = 83,311.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.