Home / 109,345.20-150,895.68-61,613.92

Finding the Fourth Proportional to 109,345.20, 150,895.68 and 61,613.92

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Solution

The fourth proportional to 109,345.20, 150,895.68 and 61,613.92 is: 85,026.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,345.20 : 150,895.68 = 61,613.92 : x
  2. Step 2: Convert to fraction form
    109,345.20/150,895.68 = 61,613.92/x
  3. Step 3: Cross multiply
    109,345.20x = 150,895.68 × 61,613.92
  4. Step 4: Simplify right side
    109,345.20x = 9,297,274,355.87
  5. Step 5: Solve for x
    x = 9,297,274,355.87/109,345.20
  6. Step 6: Final answer
    x = 85,026.82

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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.