Home / 132,657.28-198,953.10-82,711.68

Finding the Fourth Proportional to 132,657.28, 198,953.10 and 82,711.68

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Solution

The fourth proportional to 132,657.28, 198,953.10 and 82,711.68 is: 124,047.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,657.28 : 198,953.10 = 82,711.68 : x
  2. Step 2: Convert to fraction form
    132,657.28/198,953.10 = 82,711.68/x
  3. Step 3: Cross multiply
    132,657.28x = 198,953.10 × 82,711.68
  4. Step 4: Simplify right side
    132,657.28x = 16,455,745,142.21
  5. Step 5: Solve for x
    x = 16,455,745,142.21/132,657.28
  6. Step 6: Final answer
    x = 124,047.06

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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.