Home / 127,901.62-176,615.67-80,236.90

Finding the Fourth Proportional to 127,901.62, 176,615.67 and 80,236.90

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Solution

The fourth proportional to 127,901.62, 176,615.67 and 80,236.90 is: 110,796.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,901.62 : 176,615.67 = 80,236.90 : x
  2. Step 2: Convert to fraction form
    127,901.62/176,615.67 = 80,236.90/x
  3. Step 3: Cross multiply
    127,901.62x = 176,615.67 × 80,236.90
  4. Step 4: Simplify right side
    127,901.62x = 14,171,093,852.22
  5. Step 5: Solve for x
    x = 14,171,093,852.22/127,901.62
  6. Step 6: Final answer
    x = 110,796.83

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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.