Home / 126,500.08-189,356.46-79,654.54

Finding the Fourth Proportional to 126,500.08, 189,356.46 and 79,654.54

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Solution

The fourth proportional to 126,500.08, 189,356.46 and 79,654.54 is: 119,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,500.08 : 189,356.46 = 79,654.54 : x
  2. Step 2: Convert to fraction form
    126,500.08/189,356.46 = 79,654.54/x
  3. Step 3: Cross multiply
    126,500.08x = 189,356.46 × 79,654.54
  4. Step 4: Simplify right side
    126,500.08x = 15,083,101,717.33
  5. Step 5: Solve for x
    x = 15,083,101,717.33/126,500.08
  6. Step 6: Final answer
    x = 119,233.93

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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.