Home / 382,012.32-572,662.24-129,115.92

Finding the Fourth Proportional to 382,012.32, 572,662.24 and 129,115.92

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Solution

The fourth proportional to 382,012.32, 572,662.24 and 129,115.92 is: 193,553.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,012.32 : 572,662.24 = 129,115.92 : x
  2. Step 2: Convert to fraction form
    382,012.32/572,662.24 = 129,115.92/x
  3. Step 3: Cross multiply
    382,012.32x = 572,662.24 × 129,115.92
  4. Step 4: Simplify right side
    382,012.32x = 73,939,811,966.86
  5. Step 5: Solve for x
    x = 73,939,811,966.86/382,012.32
  6. Step 6: Final answer
    x = 193,553.47

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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.