Home / 239,086.69-329,939.63-131,656.49

Finding the Fourth Proportional to 239,086.69, 329,939.63 and 131,656.49

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Solution

The fourth proportional to 239,086.69, 329,939.63 and 131,656.49 is: 181,685.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,086.69 : 329,939.63 = 131,656.49 : x
  2. Step 2: Convert to fraction form
    239,086.69/329,939.63 = 131,656.49/x
  3. Step 3: Cross multiply
    239,086.69x = 329,939.63 × 131,656.49
  4. Step 4: Simplify right side
    239,086.69x = 43,438,693,020.70
  5. Step 5: Solve for x
    x = 43,438,693,020.70/239,086.69
  6. Step 6: Final answer
    x = 181,685.95

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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.