Home / 122,732.08-169,367.32-80,289.70

Finding the Fourth Proportional to 122,732.08, 169,367.32 and 80,289.70

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Solution

The fourth proportional to 122,732.08, 169,367.32 and 80,289.70 is: 110,797.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,732.08 : 169,367.32 = 80,289.70 : x
  2. Step 2: Convert to fraction form
    122,732.08/169,367.32 = 80,289.70/x
  3. Step 3: Cross multiply
    122,732.08x = 169,367.32 × 80,289.70
  4. Step 4: Simplify right side
    122,732.08x = 13,598,451,312.60
  5. Step 5: Solve for x
    x = 13,598,451,312.60/122,732.08
  6. Step 6: Final answer
    x = 110,797.86

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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.