Home / 112,863.65-155,644.07-67,534.43

Finding the Fourth Proportional to 112,863.65, 155,644.07 and 67,534.43

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Solution

The fourth proportional to 112,863.65, 155,644.07 and 67,534.43 is: 93,133.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,863.65 : 155,644.07 = 67,534.43 : x
  2. Step 2: Convert to fraction form
    112,863.65/155,644.07 = 67,534.43/x
  3. Step 3: Cross multiply
    112,863.65x = 155,644.07 × 67,534.43
  4. Step 4: Simplify right side
    112,863.65x = 10,511,332,434.44
  5. Step 5: Solve for x
    x = 10,511,332,434.44/112,863.65
  6. Step 6: Final answer
    x = 93,133.02

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1.5x scale

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.