Home / 126,128.78-189,170.48-32,628.86

Finding the Fourth Proportional to 126,128.78, 189,170.48 and 32,628.86

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Solution

The fourth proportional to 126,128.78, 189,170.48 and 32,628.86 is: 48,937.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,128.78 : 189,170.48 = 32,628.86 : x
  2. Step 2: Convert to fraction form
    126,128.78/189,170.48 = 32,628.86/x
  3. Step 3: Cross multiply
    126,128.78x = 189,170.48 × 32,628.86
  4. Step 4: Simplify right side
    126,128.78x = 6,172,417,108.05
  5. Step 5: Solve for x
    x = 6,172,417,108.05/126,128.78
  6. Step 6: Final answer
    x = 48,937.42

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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.