Home / 109,815.30-151,545.20-59,514.30

Finding the Fourth Proportional to 109,815.30, 151,545.20 and 59,514.30

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Solution

The fourth proportional to 109,815.30, 151,545.20 and 59,514.30 is: 82,129.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,815.30 : 151,545.20 = 59,514.30 : x
  2. Step 2: Convert to fraction form
    109,815.30/151,545.20 = 59,514.30/x
  3. Step 3: Cross multiply
    109,815.30x = 151,545.20 × 59,514.30
  4. Step 4: Simplify right side
    109,815.30x = 9,019,106,198.79
  5. Step 5: Solve for x
    x = 9,019,106,198.79/109,815.30
  6. Step 6: Final answer
    x = 82,129.78

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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.