Home / 126,350.40-189,295.20-102,849.60

Finding the Fourth Proportional to 126,350.40, 189,295.20 and 102,849.60

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Solution

The fourth proportional to 126,350.40, 189,295.20 and 102,849.60 is: 154,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,350.40 : 189,295.20 = 102,849.60 : x
  2. Step 2: Convert to fraction form
    126,350.40/189,295.20 = 102,849.60/x
  3. Step 3: Cross multiply
    126,350.40x = 189,295.20 × 102,849.60
  4. Step 4: Simplify right side
    126,350.40x = 19,468,935,601.92
  5. Step 5: Solve for x
    x = 19,468,935,601.92/126,350.40
  6. Step 6: Final answer
    x = 154,086.85

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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.