Home / 112,819.08-155,706.66-65,062.92

Finding the Fourth Proportional to 112,819.08, 155,706.66 and 65,062.92

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Solution

The fourth proportional to 112,819.08, 155,706.66 and 65,062.92 is: 89,796.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,819.08 : 155,706.66 = 65,062.92 : x
  2. Step 2: Convert to fraction form
    112,819.08/155,706.66 = 65,062.92/x
  3. Step 3: Cross multiply
    112,819.08x = 155,706.66 × 65,062.92
  4. Step 4: Simplify right side
    112,819.08x = 10,130,729,963.05
  5. Step 5: Solve for x
    x = 10,130,729,963.05/112,819.08
  6. Step 6: Final answer
    x = 89,796.25

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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.