Home / 99,660.20-137,532.15-54,337.82

Finding the Fourth Proportional to 99,660.20, 137,532.15 and 54,337.82

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Solution

The fourth proportional to 99,660.20, 137,532.15 and 54,337.82 is: 74,986.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,660.20 : 137,532.15 = 54,337.82 : x
  2. Step 2: Convert to fraction form
    99,660.20/137,532.15 = 54,337.82/x
  3. Step 3: Cross multiply
    99,660.20x = 137,532.15 × 54,337.82
  4. Step 4: Simplify right side
    99,660.20x = 7,473,196,523.25
  5. Step 5: Solve for x
    x = 7,473,196,523.25/99,660.20
  6. Step 6: Final answer
    x = 74,986.77

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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.