Home / 122,617.34-169,216.90-68,902.20

Finding the Fourth Proportional to 122,617.34, 169,216.90 and 68,902.20

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Solution

The fourth proportional to 122,617.34, 169,216.90 and 68,902.20 is: 95,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,617.34 : 169,216.90 = 68,902.20 : x
  2. Step 2: Convert to fraction form
    122,617.34/169,216.90 = 68,902.20/x
  3. Step 3: Cross multiply
    122,617.34x = 169,216.90 × 68,902.20
  4. Step 4: Simplify right side
    122,617.34x = 11,659,416,687.18
  5. Step 5: Solve for x
    x = 11,659,416,687.18/122,617.34
  6. Step 6: Final answer
    x = 95,087.83

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1.5x scale

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.