Home / 127,902.62-176,617.05-80,237.90

Finding the Fourth Proportional to 127,902.62, 176,617.05 and 80,237.90

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Solution

The fourth proportional to 127,902.62, 176,617.05 and 80,237.90 is: 110,798.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,902.62 : 176,617.05 = 80,237.90 : x
  2. Step 2: Convert to fraction form
    127,902.62/176,617.05 = 80,237.90/x
  3. Step 3: Cross multiply
    127,902.62x = 176,617.05 × 80,237.90
  4. Step 4: Simplify right side
    127,902.62x = 14,171,381,196.20
  5. Step 5: Solve for x
    x = 14,171,381,196.20/127,902.62
  6. Step 6: Final answer
    x = 110,798.21

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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.