Home / 112,972.56-155,906.28-68,251.92

Finding the Fourth Proportional to 112,972.56, 155,906.28 and 68,251.92

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Solution

The fourth proportional to 112,972.56, 155,906.28 and 68,251.92 is: 94,190.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,972.56 : 155,906.28 = 68,251.92 : x
  2. Step 2: Convert to fraction form
    112,972.56/155,906.28 = 68,251.92/x
  3. Step 3: Cross multiply
    112,972.56x = 155,906.28 × 68,251.92
  4. Step 4: Simplify right side
    112,972.56x = 10,640,902,950.06
  5. Step 5: Solve for x
    x = 10,640,902,950.06/112,972.56
  6. Step 6: Final answer
    x = 94,190.16

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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.