Home / 231,494.06-319,474.23-129,513.45

Finding the Fourth Proportional to 231,494.06, 319,474.23 and 129,513.45

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Solution

The fourth proportional to 231,494.06, 319,474.23 and 129,513.45 is: 178,735.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,494.06 : 319,474.23 = 129,513.45 : x
  2. Step 2: Convert to fraction form
    231,494.06/319,474.23 = 129,513.45/x
  3. Step 3: Cross multiply
    231,494.06x = 319,474.23 × 129,513.45
  4. Step 4: Simplify right side
    231,494.06x = 41,376,209,713.39
  5. Step 5: Solve for x
    x = 41,376,209,713.39/231,494.06
  6. Step 6: Final answer
    x = 178,735.51

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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.