Home / 99,778.24-137,692.74-54,456.94

Finding the Fourth Proportional to 99,778.24, 137,692.74 and 54,456.94

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Solution

The fourth proportional to 99,778.24, 137,692.74 and 54,456.94 is: 75,149.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,778.24 : 137,692.74 = 54,456.94 : x
  2. Step 2: Convert to fraction form
    99,778.24/137,692.74 = 54,456.94/x
  3. Step 3: Cross multiply
    99,778.24x = 137,692.74 × 54,456.94
  4. Step 4: Simplify right side
    99,778.24x = 7,498,325,280.62
  5. Step 5: Solve for x
    x = 7,498,325,280.62/99,778.24
  6. Step 6: Final answer
    x = 75,149.91

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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.