Home / 112,951.27-155,872.12-61,962.70

Finding the Fourth Proportional to 112,951.27, 155,872.12 and 61,962.70

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Solution

The fourth proportional to 112,951.27, 155,872.12 and 61,962.70 is: 85,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,951.27 : 155,872.12 = 61,962.70 : x
  2. Step 2: Convert to fraction form
    112,951.27/155,872.12 = 61,962.70/x
  3. Step 3: Cross multiply
    112,951.27x = 155,872.12 × 61,962.70
  4. Step 4: Simplify right side
    112,951.27x = 9,658,257,009.66
  5. Step 5: Solve for x
    x = 9,658,257,009.66/112,951.27
  6. Step 6: Final answer
    x = 85,508.17

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1.5x scale

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.