Home / 112,451.88-155,185.46-67,121.04

Finding the Fourth Proportional to 112,451.88, 155,185.46 and 67,121.04

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Solution

The fourth proportional to 112,451.88, 155,185.46 and 67,121.04 is: 92,628.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,451.88 : 155,185.46 = 67,121.04 : x
  2. Step 2: Convert to fraction form
    112,451.88/155,185.46 = 67,121.04/x
  3. Step 3: Cross multiply
    112,451.88x = 155,185.46 × 67,121.04
  4. Step 4: Simplify right side
    112,451.88x = 10,416,209,468.08
  5. Step 5: Solve for x
    x = 10,416,209,468.08/112,451.88
  6. Step 6: Final answer
    x = 92,628.15

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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.