Home / 234,140.85-323,115.21-126,710.87

Finding the Fourth Proportional to 234,140.85, 323,115.21 and 126,710.87

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Solution

The fourth proportional to 234,140.85, 323,115.21 and 126,710.87 is: 174,861.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,140.85 : 323,115.21 = 126,710.87 : x
  2. Step 2: Convert to fraction form
    234,140.85/323,115.21 = 126,710.87/x
  3. Step 3: Cross multiply
    234,140.85x = 323,115.21 × 126,710.87
  4. Step 4: Simplify right side
    234,140.85x = 40,942,207,753.76
  5. Step 5: Solve for x
    x = 40,942,207,753.76/234,140.85
  6. Step 6: Final answer
    x = 174,861.45

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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.