Home / 112,976.71-155,902.59-61,988.29

Finding the Fourth Proportional to 112,976.71, 155,902.59 and 61,988.29

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Solution

The fourth proportional to 112,976.71, 155,902.59 and 61,988.29 is: 85,540.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,976.71 : 155,902.59 = 61,988.29 : x
  2. Step 2: Convert to fraction form
    112,976.71/155,902.59 = 61,988.29/x
  3. Step 3: Cross multiply
    112,976.71x = 155,902.59 × 61,988.29
  4. Step 4: Simplify right side
    112,976.71x = 9,664,134,960.67
  5. Step 5: Solve for x
    x = 9,664,134,960.67/112,976.71
  6. Step 6: Final answer
    x = 85,540.95

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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.