Home / 234,348.12-323,398.80-126,915.72

Finding the Fourth Proportional to 234,348.12, 323,398.80 and 126,915.72

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Solution

The fourth proportional to 234,348.12, 323,398.80 and 126,915.72 is: 175,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,348.12 : 323,398.80 = 126,915.72 : x
  2. Step 2: Convert to fraction form
    234,348.12/323,398.80 = 126,915.72/x
  3. Step 3: Cross multiply
    234,348.12x = 323,398.80 × 126,915.72
  4. Step 4: Simplify right side
    234,348.12x = 41,044,391,549.14
  5. Step 5: Solve for x
    x = 41,044,391,549.14/234,348.12
  6. Step 6: Final answer
    x = 175,142.82

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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.