Home / 126,628.20-189,945.50-43,521.64

Finding the Fourth Proportional to 126,628.20, 189,945.50 and 43,521.64

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Solution

The fourth proportional to 126,628.20, 189,945.50 and 43,521.64 is: 65,283.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,628.20 : 189,945.50 = 43,521.64 : x
  2. Step 2: Convert to fraction form
    126,628.20/189,945.50 = 43,521.64/x
  3. Step 3: Cross multiply
    126,628.20x = 189,945.50 × 43,521.64
  4. Step 4: Simplify right side
    126,628.20x = 8,266,739,670.62
  5. Step 5: Solve for x
    x = 8,266,739,670.62/126,628.20
  6. Step 6: Final answer
    x = 65,283.56

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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.