Home / 231,330.78-319,219.72-127,960.61

Finding the Fourth Proportional to 231,330.78, 319,219.72 and 127,960.61

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Solution

The fourth proportional to 231,330.78, 319,219.72 and 127,960.61 is: 176,576.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,330.78 : 319,219.72 = 127,960.61 : x
  2. Step 2: Convert to fraction form
    231,330.78/319,219.72 = 127,960.61/x
  3. Step 3: Cross multiply
    231,330.78x = 319,219.72 × 127,960.61
  4. Step 4: Simplify right side
    231,330.78x = 40,847,548,179.23
  5. Step 5: Solve for x
    x = 40,847,548,179.23/231,330.78
  6. Step 6: Final answer
    x = 176,576.36

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1.5x scale

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.