Home / 127,478.62-191,217.84-38,731.78

Finding the Fourth Proportional to 127,478.62, 191,217.84 and 38,731.78

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Solution

The fourth proportional to 127,478.62, 191,217.84 and 38,731.78 is: 58,097.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,478.62 : 191,217.84 = 38,731.78 : x
  2. Step 2: Convert to fraction form
    127,478.62/191,217.84 = 38,731.78/x
  3. Step 3: Cross multiply
    127,478.62x = 191,217.84 × 38,731.78
  4. Step 4: Simplify right side
    127,478.62x = 7,406,207,310.96
  5. Step 5: Solve for x
    x = 7,406,207,310.96/127,478.62
  6. Step 6: Final answer
    x = 58,097.64

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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.