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Finding the Fourth Proportional to 112,608, 155,400.48 and 62,305.92

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Solution

The fourth proportional to 112,608, 155,400.48 and 62,305.92 is: 85,982.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,608 : 155,400.48 = 62,305.92 : x
  2. Step 2: Convert to fraction form
    112,608/155,400.48 = 62,305.92/x
  3. Step 3: Cross multiply
    112,608x = 155,400.48 × 62,305.92
  4. Step 4: Simplify right side
    112,608x = 9,682,369,874.84
  5. Step 5: Solve for x
    x = 9,682,369,874.84/112,608
  6. Step 6: Final answer
    x = 85,982.97

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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.