Home / 99,757.20-137,660.66-54,434.06

Finding the Fourth Proportional to 99,757.20, 137,660.66 and 54,434.06

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Solution

The fourth proportional to 99,757.20, 137,660.66 and 54,434.06 is: 75,116.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,757.20 : 137,660.66 = 54,434.06 : x
  2. Step 2: Convert to fraction form
    99,757.20/137,660.66 = 54,434.06/x
  3. Step 3: Cross multiply
    99,757.20x = 137,660.66 × 54,434.06
  4. Step 4: Simplify right side
    99,757.20x = 7,493,428,692.15
  5. Step 5: Solve for x
    x = 7,493,428,692.15/99,757.20
  6. Step 6: Final answer
    x = 75,116.67

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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.