Home / 126,203.67-189,301.37-51,301.71

Finding the Fourth Proportional to 126,203.67, 189,301.37 and 51,301.71

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Solution

The fourth proportional to 126,203.67, 189,301.37 and 51,301.71 is: 76,950.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,203.67 : 189,301.37 = 51,301.71 : x
  2. Step 2: Convert to fraction form
    126,203.67/189,301.37 = 51,301.71/x
  3. Step 3: Cross multiply
    126,203.67x = 189,301.37 × 51,301.71
  4. Step 4: Simplify right side
    126,203.67x = 9,711,483,729.83
  5. Step 5: Solve for x
    x = 9,711,483,729.83/126,203.67
  6. Step 6: Final answer
    x = 76,950.88

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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.