Home / 112,747.15-155,585.02-61,757.25

Finding the Fourth Proportional to 112,747.15, 155,585.02 and 61,757.25

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Solution

The fourth proportional to 112,747.15, 155,585.02 and 61,757.25 is: 85,221.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,747.15 : 155,585.02 = 61,757.25 : x
  2. Step 2: Convert to fraction form
    112,747.15/155,585.02 = 61,757.25/x
  3. Step 3: Cross multiply
    112,747.15x = 155,585.02 × 61,757.25
  4. Step 4: Simplify right side
    112,747.15x = 9,608,502,976.40
  5. Step 5: Solve for x
    x = 9,608,502,976.40/112,747.15
  6. Step 6: Final answer
    x = 85,221.69

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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.