Home / 132,531.15-198,835.91-76,411.52

Finding the Fourth Proportional to 132,531.15, 198,835.91 and 76,411.52

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Solution

The fourth proportional to 132,531.15, 198,835.91 and 76,411.52 is: 114,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,531.15 : 198,835.91 = 76,411.52 : x
  2. Step 2: Convert to fraction form
    132,531.15/198,835.91 = 76,411.52/x
  3. Step 3: Cross multiply
    132,531.15x = 198,835.91 × 76,411.52
  4. Step 4: Simplify right side
    132,531.15x = 15,193,354,199.44
  5. Step 5: Solve for x
    x = 15,193,354,199.44/132,531.15
  6. Step 6: Final answer
    x = 114,639.87

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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.