Home / 112,976.46-155,902.25-61,988.04

Finding the Fourth Proportional to 112,976.46, 155,902.25 and 61,988.04

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Solution

The fourth proportional to 112,976.46, 155,902.25 and 61,988.04 is: 85,540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,976.46 : 155,902.25 = 61,988.04 : x
  2. Step 2: Convert to fraction form
    112,976.46/155,902.25 = 61,988.04/x
  3. Step 3: Cross multiply
    112,976.46x = 155,902.25 × 61,988.04
  4. Step 4: Simplify right side
    112,976.46x = 9,664,075,064.06
  5. Step 5: Solve for x
    x = 9,664,075,064.06/112,976.46
  6. Step 6: Final answer
    x = 85,540.61

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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.