Home / 99,331.20-149,169.60-52,675.20

Finding the Fourth Proportional to 99,331.20, 149,169.60 and 52,675.20

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Solution

The fourth proportional to 99,331.20, 149,169.60 and 52,675.20 is: 79,104.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,331.20 : 149,169.60 = 52,675.20 : x
  2. Step 2: Convert to fraction form
    99,331.20/149,169.60 = 52,675.20/x
  3. Step 3: Cross multiply
    99,331.20x = 149,169.60 × 52,675.20
  4. Step 4: Simplify right side
    99,331.20x = 7,857,538,513.92
  5. Step 5: Solve for x
    x = 7,857,538,513.92/99,331.20
  6. Step 6: Final answer
    x = 79,104.44

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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.