Home / 439,612.10-659,325.87-123,995.20

Finding the Fourth Proportional to 439,612.10, 659,325.87 and 123,995.20

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Solution

The fourth proportional to 439,612.10, 659,325.87 and 123,995.20 is: 185,966.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,612.10 : 659,325.87 = 123,995.20 : x
  2. Step 2: Convert to fraction form
    439,612.10/659,325.87 = 123,995.20/x
  3. Step 3: Cross multiply
    439,612.10x = 659,325.87 × 123,995.20
  4. Step 4: Simplify right side
    439,612.10x = 81,753,243,115.82
  5. Step 5: Solve for x
    x = 81,753,243,115.82/439,612.10
  6. Step 6: Final answer
    x = 185,966.77

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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.