Home / 127,754.20-176,292.30-76,769.02

Finding the Fourth Proportional to 127,754.20, 176,292.30 and 76,769.02

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Solution

The fourth proportional to 127,754.20, 176,292.30 and 76,769.02 is: 105,936.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,754.20 : 176,292.30 = 76,769.02 : x
  2. Step 2: Convert to fraction form
    127,754.20/176,292.30 = 76,769.02/x
  3. Step 3: Cross multiply
    127,754.20x = 176,292.30 × 76,769.02
  4. Step 4: Simplify right side
    127,754.20x = 13,533,787,104.55
  5. Step 5: Solve for x
    x = 13,533,787,104.55/127,754.20
  6. Step 6: Final answer
    x = 105,936.14

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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.