Home / 231,583.17-319,598.86-129,606.55

Finding the Fourth Proportional to 231,583.17, 319,598.86 and 129,606.55

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Solution

The fourth proportional to 231,583.17, 319,598.86 and 129,606.55 is: 178,864.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,583.17 : 319,598.86 = 129,606.55 : x
  2. Step 2: Convert to fraction form
    231,583.17/319,598.86 = 129,606.55/x
  3. Step 3: Cross multiply
    231,583.17x = 319,598.86 × 129,606.55
  4. Step 4: Simplify right side
    231,583.17x = 41,422,105,628.53
  5. Step 5: Solve for x
    x = 41,422,105,628.53/231,583.17
  6. Step 6: Final answer
    x = 178,864.92

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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.