Home / 87,122.20-120,184.34-56,925.18

Finding the Fourth Proportional to 87,122.20, 120,184.34 and 56,925.18

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Solution

The fourth proportional to 87,122.20, 120,184.34 and 56,925.18 is: 78,527.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,122.20 : 120,184.34 = 56,925.18 : x
  2. Step 2: Convert to fraction form
    87,122.20/120,184.34 = 56,925.18/x
  3. Step 3: Cross multiply
    87,122.20x = 120,184.34 × 56,925.18
  4. Step 4: Simplify right side
    87,122.20x = 6,841,515,187.68
  5. Step 5: Solve for x
    x = 6,841,515,187.68/87,122.20
  6. Step 6: Final answer
    x = 78,527.81

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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.