Home / 112,439.32-168,658.97-45,910.78

Finding the Fourth Proportional to 112,439.32, 168,658.97 and 45,910.78

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Solution

The fourth proportional to 112,439.32, 168,658.97 and 45,910.78 is: 68,866.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,439.32 : 168,658.97 = 45,910.78 : x
  2. Step 2: Convert to fraction form
    112,439.32/168,658.97 = 45,910.78/x
  3. Step 3: Cross multiply
    112,439.32x = 168,658.97 × 45,910.78
  4. Step 4: Simplify right side
    112,439.32x = 7,743,264,866.70
  5. Step 5: Solve for x
    x = 7,743,264,866.70/112,439.32
  6. Step 6: Final answer
    x = 68,866.17

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1.5x scale

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.