Home / 439,595.20-659,385.60-140,071.74

Finding the Fourth Proportional to 439,595.20, 659,385.60 and 140,071.74

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Solution

The fourth proportional to 439,595.20, 659,385.60 and 140,071.74 is: 210,105.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,595.20 : 659,385.60 = 140,071.74 : x
  2. Step 2: Convert to fraction form
    439,595.20/659,385.60 = 140,071.74/x
  3. Step 3: Cross multiply
    439,595.20x = 659,385.60 × 140,071.74
  4. Step 4: Simplify right side
    439,595.20x = 92,361,288,322.94
  5. Step 5: Solve for x
    x = 92,361,288,322.94/439,595.20
  6. Step 6: Final answer
    x = 210,105.32

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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.