Home / 231,784.56-319,836.24-129,795.84

Finding the Fourth Proportional to 231,784.56, 319,836.24 and 129,795.84

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Solution

The fourth proportional to 231,784.56, 319,836.24 and 129,795.84 is: 179,103.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,784.56 : 319,836.24 = 129,795.84 : x
  2. Step 2: Convert to fraction form
    231,784.56/319,836.24 = 129,795.84/x
  3. Step 3: Cross multiply
    231,784.56x = 319,836.24 × 129,795.84
  4. Step 4: Simplify right side
    231,784.56x = 41,513,413,433.24
  5. Step 5: Solve for x
    x = 41,513,413,433.24/231,784.56
  6. Step 6: Final answer
    x = 179,103.45

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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.