Home / 239,085.12-329,939.61-131,655.57

Finding the Fourth Proportional to 239,085.12, 329,939.61 and 131,655.57

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Solution

The fourth proportional to 239,085.12, 329,939.61 and 131,655.57 is: 181,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,085.12 : 329,939.61 = 131,655.57 : x
  2. Step 2: Convert to fraction form
    239,085.12/329,939.61 = 131,655.57/x
  3. Step 3: Cross multiply
    239,085.12x = 329,939.61 × 131,655.57
  4. Step 4: Simplify right side
    239,085.12x = 43,438,387,420.13
  5. Step 5: Solve for x
    x = 43,438,387,420.13/239,085.12
  6. Step 6: Final answer
    x = 181,685.87

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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.