Home / 127,850.62-176,434.05-71,260.78

Finding the Fourth Proportional to 127,850.62, 176,434.05 and 71,260.78

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Solution

The fourth proportional to 127,850.62, 176,434.05 and 71,260.78 is: 98,339.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,850.62 : 176,434.05 = 71,260.78 : x
  2. Step 2: Convert to fraction form
    127,850.62/176,434.05 = 71,260.78/x
  3. Step 3: Cross multiply
    127,850.62x = 176,434.05 × 71,260.78
  4. Step 4: Simplify right side
    127,850.62x = 12,572,828,021.56
  5. Step 5: Solve for x
    x = 12,572,828,021.56/127,850.62
  6. Step 6: Final answer
    x = 98,339.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.