Home / 112,457.10-155,165.22-67,149.75

Finding the Fourth Proportional to 112,457.10, 155,165.22 and 67,149.75

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Solution

The fourth proportional to 112,457.10, 155,165.22 and 67,149.75 is: 92,651.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,457.10 : 155,165.22 = 67,149.75 : x
  2. Step 2: Convert to fraction form
    112,457.10/155,165.22 = 67,149.75/x
  3. Step 3: Cross multiply
    112,457.10x = 155,165.22 × 67,149.75
  4. Step 4: Simplify right side
    112,457.10x = 10,419,305,731.70
  5. Step 5: Solve for x
    x = 10,419,305,731.70/112,457.10
  6. Step 6: Final answer
    x = 92,651.38

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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.