Home / 231,567.40-319,578.42-129,601.72

Finding the Fourth Proportional to 231,567.40, 319,578.42 and 129,601.72

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Solution

The fourth proportional to 231,567.40, 319,578.42 and 129,601.72 is: 178,859.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,567.40 : 319,578.42 = 129,601.72 : x
  2. Step 2: Convert to fraction form
    231,567.40/319,578.42 = 129,601.72/x
  3. Step 3: Cross multiply
    231,567.40x = 319,578.42 × 129,601.72
  4. Step 4: Simplify right side
    231,567.40x = 41,417,912,906.88
  5. Step 5: Solve for x
    x = 41,417,912,906.88/231,567.40
  6. Step 6: Final answer
    x = 178,859.00

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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.