Home / 100,872.27-151,309.62-34,313.76

Finding the Fourth Proportional to 100,872.27, 151,309.62 and 34,313.76

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Solution

The fourth proportional to 100,872.27, 151,309.62 and 34,313.76 is: 51,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,872.27 : 151,309.62 = 34,313.76 : x
  2. Step 2: Convert to fraction form
    100,872.27/151,309.62 = 34,313.76/x
  3. Step 3: Cross multiply
    100,872.27x = 151,309.62 × 34,313.76
  4. Step 4: Simplify right side
    100,872.27x = 5,192,001,986.37
  5. Step 5: Solve for x
    x = 5,192,001,986.37/100,872.27
  6. Step 6: Final answer
    x = 51,471.05

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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.