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Finding the Fourth Proportional to 103,490.59, 155,296.12 and 43,514.73

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Solution

The fourth proportional to 103,490.59, 155,296.12 and 43,514.73 is: 65,297.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,490.59 : 155,296.12 = 43,514.73 : x
  2. Step 2: Convert to fraction form
    103,490.59/155,296.12 = 43,514.73/x
  3. Step 3: Cross multiply
    103,490.59x = 155,296.12 × 43,514.73
  4. Step 4: Simplify right side
    103,490.59x = 6,757,668,064.15
  5. Step 5: Solve for x
    x = 6,757,668,064.15/103,490.59
  6. Step 6: Final answer
    x = 65,297.41

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1.5x scale

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.