Home / 453,670.30-680,505.45-138,126.70

Finding the Fourth Proportional to 453,670.30, 680,505.45 and 138,126.70

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Solution

The fourth proportional to 453,670.30, 680,505.45 and 138,126.70 is: 207,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,670.30 : 680,505.45 = 138,126.70 : x
  2. Step 2: Convert to fraction form
    453,670.30/680,505.45 = 138,126.70/x
  3. Step 3: Cross multiply
    453,670.30x = 680,505.45 × 138,126.70
  4. Step 4: Simplify right side
    453,670.30x = 93,995,972,140.52
  5. Step 5: Solve for x
    x = 93,995,972,140.52/453,670.30
  6. Step 6: Final answer
    x = 207,190.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.