Home / 126,159.86-189,025.57-76,134.86

Finding the Fourth Proportional to 126,159.86, 189,025.57 and 76,134.86

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Solution

The fourth proportional to 126,159.86, 189,025.57 and 76,134.86 is: 114,073.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,159.86 : 189,025.57 = 76,134.86 : x
  2. Step 2: Convert to fraction form
    126,159.86/189,025.57 = 76,134.86/x
  3. Step 3: Cross multiply
    126,159.86x = 189,025.57 × 76,134.86
  4. Step 4: Simplify right side
    126,159.86x = 14,391,433,982.57
  5. Step 5: Solve for x
    x = 14,391,433,982.57/126,159.86
  6. Step 6: Final answer
    x = 114,073.01

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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.