Home / 120,589.76-166,387.24-69,591.65

Finding the Fourth Proportional to 120,589.76, 166,387.24 and 69,591.65

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Solution

The fourth proportional to 120,589.76, 166,387.24 and 69,591.65 is: 96,021.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,589.76 : 166,387.24 = 69,591.65 : x
  2. Step 2: Convert to fraction form
    120,589.76/166,387.24 = 69,591.65/x
  3. Step 3: Cross multiply
    120,589.76x = 166,387.24 × 69,591.65
  4. Step 4: Simplify right side
    120,589.76x = 11,579,162,889.19
  5. Step 5: Solve for x
    x = 11,579,162,889.19/120,589.76
  6. Step 6: Final answer
    x = 96,021.12

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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.