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Finding the Fourth Proportional to 144,354.16, 199,208.16 and 80,691.92

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Solution

The fourth proportional to 144,354.16, 199,208.16 and 80,691.92 is: 111,354.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,354.16 : 199,208.16 = 80,691.92 : x
  2. Step 2: Convert to fraction form
    144,354.16/199,208.16 = 80,691.92/x
  3. Step 3: Cross multiply
    144,354.16x = 199,208.16 × 80,691.92
  4. Step 4: Simplify right side
    144,354.16x = 16,074,488,910.07
  5. Step 5: Solve for x
    x = 16,074,488,910.07/144,354.16
  6. Step 6: Final answer
    x = 111,354.52

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1.5x scale

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.