Home / 122,440.11-168,954.38-68,731.04

Finding the Fourth Proportional to 122,440.11, 168,954.38 and 68,731.04

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Solution

The fourth proportional to 122,440.11, 168,954.38 and 68,731.04 is: 94,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,440.11 : 168,954.38 = 68,731.04 : x
  2. Step 2: Convert to fraction form
    122,440.11/168,954.38 = 68,731.04/x
  3. Step 3: Cross multiply
    122,440.11x = 168,954.38 × 68,731.04
  4. Step 4: Simplify right side
    122,440.11x = 11,612,409,405.18
  5. Step 5: Solve for x
    x = 11,612,409,405.18/122,440.11
  6. Step 6: Final answer
    x = 94,841.55

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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.