Home / 439,618.20-659,427.30-140,120.70

Finding the Fourth Proportional to 439,618.20, 659,427.30 and 140,120.70

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Solution

The fourth proportional to 439,618.20, 659,427.30 and 140,120.70 is: 210,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,618.20 : 659,427.30 = 140,120.70 : x
  2. Step 2: Convert to fraction form
    439,618.20/659,427.30 = 140,120.70/x
  3. Step 3: Cross multiply
    439,618.20x = 659,427.30 × 140,120.70
  4. Step 4: Simplify right side
    439,618.20x = 92,399,414,875.11
  5. Step 5: Solve for x
    x = 92,399,414,875.11/439,618.20
  6. Step 6: Final answer
    x = 210,181.05

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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.