Home / 127,769.38-191,532.06-47,785.66

Finding the Fourth Proportional to 127,769.38, 191,532.06 and 47,785.66

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Solution

The fourth proportional to 127,769.38, 191,532.06 and 47,785.66 is: 71,632.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,769.38 : 191,532.06 = 47,785.66 : x
  2. Step 2: Convert to fraction form
    127,769.38/191,532.06 = 47,785.66/x
  3. Step 3: Cross multiply
    127,769.38x = 191,532.06 × 47,785.66
  4. Step 4: Simplify right side
    127,769.38x = 9,152,486,496.80
  5. Step 5: Solve for x
    x = 9,152,486,496.80/127,769.38
  6. Step 6: Final answer
    x = 71,632.86

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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.