Home / 439,613.61-659,408.12-140,112.17

Finding the Fourth Proportional to 439,613.61, 659,408.12 and 140,112.17

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Solution

The fourth proportional to 439,613.61, 659,408.12 and 140,112.17 is: 210,164.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,613.61 : 659,408.12 = 140,112.17 : x
  2. Step 2: Convert to fraction form
    439,613.61/659,408.12 = 140,112.17/x
  3. Step 3: Cross multiply
    439,613.61x = 659,408.12 × 140,112.17
  4. Step 4: Simplify right side
    439,613.61x = 92,391,098,611.22
  5. Step 5: Solve for x
    x = 92,391,098,611.22/439,613.61
  6. Step 6: Final answer
    x = 210,164.33

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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.