Home / 149,115.46-205,711.53-88,651.79

Finding the Fourth Proportional to 149,115.46, 205,711.53 and 88,651.79

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Solution

The fourth proportional to 149,115.46, 205,711.53 and 88,651.79 is: 122,299.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,115.46 : 205,711.53 = 88,651.79 : x
  2. Step 2: Convert to fraction form
    149,115.46/205,711.53 = 88,651.79/x
  3. Step 3: Cross multiply
    149,115.46x = 205,711.53 × 88,651.79
  4. Step 4: Simplify right side
    149,115.46x = 18,236,695,539.97
  5. Step 5: Solve for x
    x = 18,236,695,539.97/149,115.46
  6. Step 6: Final answer
    x = 122,299.16

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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.