Home / 113,276.60-169,761.30-80,406.20

Finding the Fourth Proportional to 113,276.60, 169,761.30 and 80,406.20

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Solution

The fourth proportional to 113,276.60, 169,761.30 and 80,406.20 is: 120,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,276.60 : 169,761.30 = 80,406.20 : x
  2. Step 2: Convert to fraction form
    113,276.60/169,761.30 = 80,406.20/x
  3. Step 3: Cross multiply
    113,276.60x = 169,761.30 × 80,406.20
  4. Step 4: Simplify right side
    113,276.60x = 13,649,861,040.06
  5. Step 5: Solve for x
    x = 13,649,861,040.06/113,276.60
  6. Step 6: Final answer
    x = 120,500.27

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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.