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Finding the Fourth Proportional to 88,129.54, 131,901.88 and 80,250.19

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Solution

The fourth proportional to 88,129.54, 131,901.88 and 80,250.19 is: 120,109.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,129.54 : 131,901.88 = 80,250.19 : x
  2. Step 2: Convert to fraction form
    88,129.54/131,901.88 = 80,250.19/x
  3. Step 3: Cross multiply
    88,129.54x = 131,901.88 × 80,250.19
  4. Step 4: Simplify right side
    88,129.54x = 10,585,150,931.36
  5. Step 5: Solve for x
    x = 10,585,150,931.36/88,129.54
  6. Step 6: Final answer
    x = 120,109.00

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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.