Home / 234,234.12-323,240.36-126,801.78

Finding the Fourth Proportional to 234,234.12, 323,240.36 and 126,801.78

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Solution

The fourth proportional to 234,234.12, 323,240.36 and 126,801.78 is: 174,984.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,234.12 : 323,240.36 = 126,801.78 : x
  2. Step 2: Convert to fraction form
    234,234.12/323,240.36 = 126,801.78/x
  3. Step 3: Cross multiply
    234,234.12x = 323,240.36 × 126,801.78
  4. Step 4: Simplify right side
    234,234.12x = 40,987,453,015.84
  5. Step 5: Solve for x
    x = 40,987,453,015.84/234,234.12
  6. Step 6: Final answer
    x = 174,984.98

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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.