Home / 112,074.54-154,450.17-80,187.90

Finding the Fourth Proportional to 112,074.54, 154,450.17 and 80,187.90

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Solution

The fourth proportional to 112,074.54, 154,450.17 and 80,187.90 is: 110,507.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,074.54 : 154,450.17 = 80,187.90 : x
  2. Step 2: Convert to fraction form
    112,074.54/154,450.17 = 80,187.90/x
  3. Step 3: Cross multiply
    112,074.54x = 154,450.17 × 80,187.90
  4. Step 4: Simplify right side
    112,074.54x = 12,385,034,786.94
  5. Step 5: Solve for x
    x = 12,385,034,786.94/112,074.54
  6. Step 6: Final answer
    x = 110,507.12

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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.