Home / 112,921.97-155,441.10-97,601.50

Finding the Fourth Proportional to 112,921.97, 155,441.10 and 97,601.50

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Solution

The fourth proportional to 112,921.97, 155,441.10 and 97,601.50 is: 134,351.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,921.97 : 155,441.10 = 97,601.50 : x
  2. Step 2: Convert to fraction form
    112,921.97/155,441.10 = 97,601.50/x
  3. Step 3: Cross multiply
    112,921.97x = 155,441.10 × 97,601.50
  4. Step 4: Simplify right side
    112,921.97x = 15,171,283,744.44
  5. Step 5: Solve for x
    x = 15,171,283,744.44/112,921.97
  6. Step 6: Final answer
    x = 134,351.92

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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.