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Finding the Fourth Proportional to 87,096.76, 120,251.10 and 77,648.92

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Solution

The fourth proportional to 87,096.76, 120,251.10 and 77,648.92 is: 107,206.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,096.76 : 120,251.10 = 77,648.92 : x
  2. Step 2: Convert to fraction form
    87,096.76/120,251.10 = 77,648.92/x
  3. Step 3: Cross multiply
    87,096.76x = 120,251.10 × 77,648.92
  4. Step 4: Simplify right side
    87,096.76x = 9,337,368,043.81
  5. Step 5: Solve for x
    x = 9,337,368,043.81/87,096.76
  6. Step 6: Final answer
    x = 107,206.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.