Home / 106,500.30-159,773.13-31,620.66

Finding the Fourth Proportional to 106,500.30, 159,773.13 and 31,620.66

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Solution

The fourth proportional to 106,500.30, 159,773.13 and 31,620.66 is: 47,437.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,500.30 : 159,773.13 = 31,620.66 : x
  2. Step 2: Convert to fraction form
    106,500.30/159,773.13 = 31,620.66/x
  3. Step 3: Cross multiply
    106,500.30x = 159,773.13 × 31,620.66
  4. Step 4: Simplify right side
    106,500.30x = 5,052,131,820.87
  5. Step 5: Solve for x
    x = 5,052,131,820.87/106,500.30
  6. Step 6: Final answer
    x = 47,437.72

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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.