Home / 101,068.20-151,711.65-56,781.45

Finding the Fourth Proportional to 101,068.20, 151,711.65 and 56,781.45

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Solution

The fourth proportional to 101,068.20, 151,711.65 and 56,781.45 is: 85,233.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,068.20 : 151,711.65 = 56,781.45 : x
  2. Step 2: Convert to fraction form
    101,068.20/151,711.65 = 56,781.45/x
  3. Step 3: Cross multiply
    101,068.20x = 151,711.65 × 56,781.45
  4. Step 4: Simplify right side
    101,068.20x = 8,614,407,468.89
  5. Step 5: Solve for x
    x = 8,614,407,468.89/101,068.20
  6. Step 6: Final answer
    x = 85,233.61

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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.