Home / 88,385.20-132,577.80-78,708.40

Finding the Fourth Proportional to 88,385.20, 132,577.80 and 78,708.40

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Solution

The fourth proportional to 88,385.20, 132,577.80 and 78,708.40 is: 118,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,385.20 : 132,577.80 = 78,708.40 : x
  2. Step 2: Convert to fraction form
    88,385.20/132,577.80 = 78,708.40/x
  3. Step 3: Cross multiply
    88,385.20x = 132,577.80 × 78,708.40
  4. Step 4: Simplify right side
    88,385.20x = 10,434,986,513.52
  5. Step 5: Solve for x
    x = 10,434,986,513.52/88,385.20
  6. Step 6: Final answer
    x = 118,062.60

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1.5x scale

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.