Home / 453,531.14-680,395.12-137,979.85

Finding the Fourth Proportional to 453,531.14, 680,395.12 and 137,979.85

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Solution

The fourth proportional to 453,531.14, 680,395.12 and 137,979.85 is: 206,999.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,531.14 : 680,395.12 = 137,979.85 : x
  2. Step 2: Convert to fraction form
    453,531.14/680,395.12 = 137,979.85/x
  3. Step 3: Cross multiply
    453,531.14x = 680,395.12 × 137,979.85
  4. Step 4: Simplify right side
    453,531.14x = 93,880,816,598.33
  5. Step 5: Solve for x
    x = 93,880,816,598.33/453,531.14
  6. Step 6: Final answer
    x = 206,999.71

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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.