Home / 231,681.47-319,625.42-140,964.71

Finding the Fourth Proportional to 231,681.47, 319,625.42 and 140,964.71

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Solution

The fourth proportional to 231,681.47, 319,625.42 and 140,964.71 is: 194,473.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,681.47 : 319,625.42 = 140,964.71 : x
  2. Step 2: Convert to fraction form
    231,681.47/319,625.42 = 140,964.71/x
  3. Step 3: Cross multiply
    231,681.47x = 319,625.42 × 140,964.71
  4. Step 4: Simplify right side
    231,681.47x = 45,055,904,733.17
  5. Step 5: Solve for x
    x = 45,055,904,733.17/231,681.47
  6. Step 6: Final answer
    x = 194,473.49

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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.