Home / 439,619.70-659,429.55-140,122.20

Finding the Fourth Proportional to 439,619.70, 659,429.55 and 140,122.20

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Solution

The fourth proportional to 439,619.70, 659,429.55 and 140,122.20 is: 210,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,619.70 : 659,429.55 = 140,122.20 : x
  2. Step 2: Convert to fraction form
    439,619.70/659,429.55 = 140,122.20/x
  3. Step 3: Cross multiply
    439,619.70x = 659,429.55 × 140,122.20
  4. Step 4: Simplify right side
    439,619.70x = 92,400,719,291.01
  5. Step 5: Solve for x
    x = 92,400,719,291.01/439,619.70
  6. Step 6: Final answer
    x = 210,183.30

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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.