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Finding the Fourth Proportional to 88,139.60, 131,917.03 and 80,260.32

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Solution

The fourth proportional to 88,139.60, 131,917.03 and 80,260.32 is: 120,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,139.60 : 131,917.03 = 80,260.32 : x
  2. Step 2: Convert to fraction form
    88,139.60/131,917.03 = 80,260.32/x
  3. Step 3: Cross multiply
    88,139.60x = 131,917.03 × 80,260.32
  4. Step 4: Simplify right side
    88,139.60x = 10,587,702,639.95
  5. Step 5: Solve for x
    x = 10,587,702,639.95/88,139.60
  6. Step 6: Final answer
    x = 120,124.25

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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.