Home / 439,609.05-659,406.42-140,085.59

Finding the Fourth Proportional to 439,609.05, 659,406.42 and 140,085.59

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Solution

The fourth proportional to 439,609.05, 659,406.42 and 140,085.59 is: 210,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,609.05 : 659,406.42 = 140,085.59 : x
  2. Step 2: Convert to fraction form
    439,609.05/659,406.42 = 140,085.59/x
  3. Step 3: Cross multiply
    439,609.05x = 659,406.42 × 140,085.59
  4. Step 4: Simplify right side
    439,609.05x = 92,373,334,098.46
  5. Step 5: Solve for x
    x = 92,373,334,098.46/439,609.05
  6. Step 6: Final answer
    x = 210,126.10

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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.