Home / 231,588.30-319,597.59-129,612.90

Finding the Fourth Proportional to 231,588.30, 319,597.59 and 129,612.90

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Solution

The fourth proportional to 231,588.30, 319,597.59 and 129,612.90 is: 178,869.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,588.30 : 319,597.59 = 129,612.90 : x
  2. Step 2: Convert to fraction form
    231,588.30/319,597.59 = 129,612.90/x
  3. Step 3: Cross multiply
    231,588.30x = 319,597.59 × 129,612.90
  4. Step 4: Simplify right side
    231,588.30x = 41,423,970,472.91
  5. Step 5: Solve for x
    x = 41,423,970,472.91/231,588.30
  6. Step 6: Final answer
    x = 178,869.01

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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.