Home / 231,531.81-319,412.46-135,995.41

Finding the Fourth Proportional to 231,531.81, 319,412.46 and 135,995.41

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Solution

The fourth proportional to 231,531.81, 319,412.46 and 135,995.41 is: 187,614.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,531.81 : 319,412.46 = 135,995.41 : x
  2. Step 2: Convert to fraction form
    231,531.81/319,412.46 = 135,995.41/x
  3. Step 3: Cross multiply
    231,531.81x = 319,412.46 × 135,995.41
  4. Step 4: Simplify right side
    231,531.81x = 43,438,628,456.81
  5. Step 5: Solve for x
    x = 43,438,628,456.81/231,531.81
  6. Step 6: Final answer
    x = 187,614.08

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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.