Home / 126,942.46-189,278.78-123,454.89

Finding the Fourth Proportional to 126,942.46, 189,278.78 and 123,454.89

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Solution

The fourth proportional to 126,942.46, 189,278.78 and 123,454.89 is: 184,078.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,942.46 : 189,278.78 = 123,454.89 : x
  2. Step 2: Convert to fraction form
    126,942.46/189,278.78 = 123,454.89/x
  3. Step 3: Cross multiply
    126,942.46x = 189,278.78 × 123,454.89
  4. Step 4: Simplify right side
    126,942.46x = 23,367,390,964.23
  5. Step 5: Solve for x
    x = 23,367,390,964.23/126,942.46
  6. Step 6: Final answer
    x = 184,078.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.