Home / 88,531.80-132,603.30-76,867.80

Finding the Fourth Proportional to 88,531.80, 132,603.30 and 76,867.80

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Solution

The fourth proportional to 88,531.80, 132,603.30 and 76,867.80 is: 115,132.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,531.80 : 132,603.30 = 76,867.80 : x
  2. Step 2: Convert to fraction form
    88,531.80/132,603.30 = 76,867.80/x
  3. Step 3: Cross multiply
    88,531.80x = 132,603.30 × 76,867.80
  4. Step 4: Simplify right side
    88,531.80x = 10,192,923,943.74
  5. Step 5: Solve for x
    x = 10,192,923,943.74/88,531.80
  6. Step 6: Final answer
    x = 115,132.91

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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.