Home / 112,115.10-167,913.45-76,863.90

Finding the Fourth Proportional to 112,115.10, 167,913.45 and 76,863.90

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Solution

The fourth proportional to 112,115.10, 167,913.45 and 76,863.90 is: 115,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,115.10 : 167,913.45 = 76,863.90 : x
  2. Step 2: Convert to fraction form
    112,115.10/167,913.45 = 76,863.90/x
  3. Step 3: Cross multiply
    112,115.10x = 167,913.45 × 76,863.90
  4. Step 4: Simplify right side
    112,115.10x = 12,906,482,629.46
  5. Step 5: Solve for x
    x = 12,906,482,629.46/112,115.10
  6. Step 6: Final answer
    x = 115,118.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.