Home / 126,676.19-189,635.67-76,604.82

Finding the Fourth Proportional to 126,676.19, 189,635.67 and 76,604.82

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Solution

The fourth proportional to 126,676.19, 189,635.67 and 76,604.82 is: 114,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,676.19 : 189,635.67 = 76,604.82 : x
  2. Step 2: Convert to fraction form
    126,676.19/189,635.67 = 76,604.82/x
  3. Step 3: Cross multiply
    126,676.19x = 189,635.67 × 76,604.82
  4. Step 4: Simplify right side
    126,676.19x = 14,527,006,365.93
  5. Step 5: Solve for x
    x = 14,527,006,365.93/126,676.19
  6. Step 6: Final answer
    x = 114,678.27

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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.