Home / 110,778.13-166,167.20-87,761.17

Finding the Fourth Proportional to 110,778.13, 166,167.20 and 87,761.17

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Solution

The fourth proportional to 110,778.13, 166,167.20 and 87,761.17 is: 131,641.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,778.13 : 166,167.20 = 87,761.17 : x
  2. Step 2: Convert to fraction form
    110,778.13/166,167.20 = 87,761.17/x
  3. Step 3: Cross multiply
    110,778.13x = 166,167.20 × 87,761.17
  4. Step 4: Simplify right side
    110,778.13x = 14,583,027,887.62
  5. Step 5: Solve for x
    x = 14,583,027,887.62/110,778.13
  6. Step 6: Final answer
    x = 131,641.76

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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.