Home / 237,118.12-327,218.38-129,687.80

Finding the Fourth Proportional to 237,118.12, 327,218.38 and 129,687.80

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Solution

The fourth proportional to 237,118.12, 327,218.38 and 129,687.80 is: 178,966.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,118.12 : 327,218.38 = 129,687.80 : x
  2. Step 2: Convert to fraction form
    237,118.12/327,218.38 = 129,687.80/x
  3. Step 3: Cross multiply
    237,118.12x = 327,218.38 × 129,687.80
  4. Step 4: Simplify right side
    237,118.12x = 42,436,231,821.76
  5. Step 5: Solve for x
    x = 42,436,231,821.76/237,118.12
  6. Step 6: Final answer
    x = 178,966.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.