Home / 112,876.08-155,767.92-61,891.68

Finding the Fourth Proportional to 112,876.08, 155,767.92 and 61,891.68

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Solution

The fourth proportional to 112,876.08, 155,767.92 and 61,891.68 is: 85,409.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,876.08 : 155,767.92 = 61,891.68 : x
  2. Step 2: Convert to fraction form
    112,876.08/155,767.92 = 61,891.68/x
  3. Step 3: Cross multiply
    112,876.08x = 155,767.92 × 61,891.68
  4. Step 4: Simplify right side
    112,876.08x = 9,640,738,258.91
  5. Step 5: Solve for x
    x = 9,640,738,258.91/112,876.08
  6. Step 6: Final answer
    x = 85,409.93

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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.