Home / 126,160.86-189,027.06-76,135.86

Finding the Fourth Proportional to 126,160.86, 189,027.06 and 76,135.86

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Solution

The fourth proportional to 126,160.86, 189,027.06 and 76,135.86 is: 114,074.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,160.86 : 189,027.06 = 76,135.86 : x
  2. Step 2: Convert to fraction form
    126,160.86/189,027.06 = 76,135.86/x
  3. Step 3: Cross multiply
    126,160.86x = 189,027.06 × 76,135.86
  4. Step 4: Simplify right side
    126,160.86x = 14,391,737,776.37
  5. Step 5: Solve for x
    x = 14,391,737,776.37/126,160.86
  6. Step 6: Final answer
    x = 114,074.51

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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.