Home / 239,084.80-329,939.31-131,658.64

Finding the Fourth Proportional to 239,084.80, 329,939.31 and 131,658.64

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Solution

The fourth proportional to 239,084.80, 329,939.31 and 131,658.64 is: 181,690.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,084.80 : 329,939.31 = 131,658.64 : x
  2. Step 2: Convert to fraction form
    239,084.80/329,939.31 = 131,658.64/x
  3. Step 3: Cross multiply
    239,084.80x = 329,939.31 × 131,658.64
  4. Step 4: Simplify right side
    239,084.80x = 43,439,360,837.14
  5. Step 5: Solve for x
    x = 43,439,360,837.14/239,084.80
  6. Step 6: Final answer
    x = 181,690.18

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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.