Home / 176,589.52-243,688.37-100,115.66

Finding the Fourth Proportional to 176,589.52, 243,688.37 and 100,115.66

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Solution

The fourth proportional to 176,589.52, 243,688.37 and 100,115.66 is: 138,156.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,589.52 : 243,688.37 = 100,115.66 : x
  2. Step 2: Convert to fraction form
    176,589.52/243,688.37 = 100,115.66/x
  3. Step 3: Cross multiply
    176,589.52x = 243,688.37 × 100,115.66
  4. Step 4: Simplify right side
    176,589.52x = 24,397,022,105.52
  5. Step 5: Solve for x
    x = 24,397,022,105.52/176,589.52
  6. Step 6: Final answer
    x = 138,156.68

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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.