Home / 122,620.08-169,218.72-68,901.87

Finding the Fourth Proportional to 122,620.08, 169,218.72 and 68,901.87

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Solution

The fourth proportional to 122,620.08, 169,218.72 and 68,901.87 is: 95,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,620.08 : 169,218.72 = 68,901.87 : x
  2. Step 2: Convert to fraction form
    122,620.08/169,218.72 = 68,901.87/x
  3. Step 3: Cross multiply
    122,620.08x = 169,218.72 × 68,901.87
  4. Step 4: Simplify right side
    122,620.08x = 11,659,486,247.01
  5. Step 5: Solve for x
    x = 11,659,486,247.01/122,620.08
  6. Step 6: Final answer
    x = 95,086.27

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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.