Home / 126,170.25-189,161.96-76,238.66

Finding the Fourth Proportional to 126,170.25, 189,161.96 and 76,238.66

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Solution

The fourth proportional to 126,170.25, 189,161.96 and 76,238.66 is: 114,301.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,170.25 : 189,161.96 = 76,238.66 : x
  2. Step 2: Convert to fraction form
    126,170.25/189,161.96 = 76,238.66/x
  3. Step 3: Cross multiply
    126,170.25x = 189,161.96 × 76,238.66
  4. Step 4: Simplify right side
    126,170.25x = 14,421,453,026.37
  5. Step 5: Solve for x
    x = 14,421,453,026.37/126,170.25
  6. Step 6: Final answer
    x = 114,301.53

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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.