Home / 88,531.20-132,796.80-76,867.20

Finding the Fourth Proportional to 88,531.20, 132,796.80 and 76,867.20

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Solution

The fourth proportional to 88,531.20, 132,796.80 and 76,867.20 is: 115,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,531.20 : 132,796.80 = 76,867.20 : x
  2. Step 2: Convert to fraction form
    88,531.20/132,796.80 = 76,867.20/x
  3. Step 3: Cross multiply
    88,531.20x = 132,796.80 × 76,867.20
  4. Step 4: Simplify right side
    88,531.20x = 10,207,718,184.96
  5. Step 5: Solve for x
    x = 10,207,718,184.96/88,531.20
  6. Step 6: Final answer
    x = 115,300.80

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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.