Home / 136,408.80-204,520.64-47,613.76

Finding the Fourth Proportional to 136,408.80, 204,520.64 and 47,613.76

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Solution

The fourth proportional to 136,408.80, 204,520.64 and 47,613.76 is: 71,388.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,408.80 : 204,520.64 = 47,613.76 : x
  2. Step 2: Convert to fraction form
    136,408.80/204,520.64 = 47,613.76/x
  3. Step 3: Cross multiply
    136,408.80x = 204,520.64 × 47,613.76
  4. Step 4: Simplify right side
    136,408.80x = 9,737,996,668.01
  5. Step 5: Solve for x
    x = 9,737,996,668.01/136,408.80
  6. Step 6: Final answer
    x = 71,388.33

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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.