Home / 112,475.52-168,629.91-68,091.78

Finding the Fourth Proportional to 112,475.52, 168,629.91 and 68,091.78

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Solution

The fourth proportional to 112,475.52, 168,629.91 and 68,091.78 is: 102,087.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,475.52 : 168,629.91 = 68,091.78 : x
  2. Step 2: Convert to fraction form
    112,475.52/168,629.91 = 68,091.78/x
  3. Step 3: Cross multiply
    112,475.52x = 168,629.91 × 68,091.78
  4. Step 4: Simplify right side
    112,475.52x = 11,482,310,733.14
  5. Step 5: Solve for x
    x = 11,482,310,733.14/112,475.52
  6. Step 6: Final answer
    x = 102,087.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.