Home / 423,680.28-635,519.76-108,137.16

Finding the Fourth Proportional to 423,680.28, 635,519.76 and 108,137.16

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Solution

The fourth proportional to 423,680.28, 635,519.76 and 108,137.16 is: 162,205.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,680.28 : 635,519.76 = 108,137.16 : x
  2. Step 2: Convert to fraction form
    423,680.28/635,519.76 = 108,137.16/x
  3. Step 3: Cross multiply
    423,680.28x = 635,519.76 × 108,137.16
  4. Step 4: Simplify right side
    423,680.28x = 68,723,301,970.28
  5. Step 5: Solve for x
    x = 68,723,301,970.28/423,680.28
  6. Step 6: Final answer
    x = 162,205.57

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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.