Home / 103,514.85-155,363.40-61,342.20

Finding the Fourth Proportional to 103,514.85, 155,363.40 and 61,342.20

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Solution

The fourth proportional to 103,514.85, 155,363.40 and 61,342.20 is: 92,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,514.85 : 155,363.40 = 61,342.20 : x
  2. Step 2: Convert to fraction form
    103,514.85/155,363.40 = 61,342.20/x
  3. Step 3: Cross multiply
    103,514.85x = 155,363.40 × 61,342.20
  4. Step 4: Simplify right side
    103,514.85x = 9,530,332,755.48
  5. Step 5: Solve for x
    x = 9,530,332,755.48/103,514.85
  6. Step 6: Final answer
    x = 92,067.30

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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.