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Finding the Fourth Proportional to 100,409.00, 150,613.65 and 75,134.88

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Solution

The fourth proportional to 100,409.00, 150,613.65 and 75,134.88 is: 112,702.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,409.00 : 150,613.65 = 75,134.88 : x
  2. Step 2: Convert to fraction form
    100,409.00/150,613.65 = 75,134.88/x
  3. Step 3: Cross multiply
    100,409.00x = 150,613.65 × 75,134.88
  4. Step 4: Simplify right side
    100,409.00x = 11,316,338,519.11
  5. Step 5: Solve for x
    x = 11,316,338,519.11/100,409.00
  6. Step 6: Final answer
    x = 112,702.44

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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.