Home / 127,982.80-192,060.60-83,501.20

Finding the Fourth Proportional to 127,982.80, 192,060.60 and 83,501.20

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Solution

The fourth proportional to 127,982.80, 192,060.60 and 83,501.20 is: 125,308.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,982.80 : 192,060.60 = 83,501.20 : x
  2. Step 2: Convert to fraction form
    127,982.80/192,060.60 = 83,501.20/x
  3. Step 3: Cross multiply
    127,982.80x = 192,060.60 × 83,501.20
  4. Step 4: Simplify right side
    127,982.80x = 16,037,290,572.72
  5. Step 5: Solve for x
    x = 16,037,290,572.72/127,982.80
  6. Step 6: Final answer
    x = 125,308.17

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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.