Home / 127,416.20-191,162.70-68,280.20

Finding the Fourth Proportional to 127,416.20, 191,162.70 and 68,280.20

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Solution

The fourth proportional to 127,416.20, 191,162.70 and 68,280.20 is: 102,440.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,416.20 : 191,162.70 = 68,280.20 : x
  2. Step 2: Convert to fraction form
    127,416.20/191,162.70 = 68,280.20/x
  3. Step 3: Cross multiply
    127,416.20x = 191,162.70 × 68,280.20
  4. Step 4: Simplify right side
    127,416.20x = 13,052,627,388.54
  5. Step 5: Solve for x
    x = 13,052,627,388.54/127,416.20
  6. Step 6: Final answer
    x = 102,440.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.