Home / 231,555.84-319,564.24-129,591.52

Finding the Fourth Proportional to 231,555.84, 319,564.24 and 129,591.52

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Solution

The fourth proportional to 231,555.84, 319,564.24 and 129,591.52 is: 178,845.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,555.84 : 319,564.24 = 129,591.52 : x
  2. Step 2: Convert to fraction form
    231,555.84/319,564.24 = 129,591.52/x
  3. Step 3: Cross multiply
    231,555.84x = 319,564.24 × 129,591.52
  4. Step 4: Simplify right side
    231,555.84x = 41,412,815,599.24
  5. Step 5: Solve for x
    x = 41,412,815,599.24/231,555.84
  6. Step 6: Final answer
    x = 178,845.91

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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.