Home / 109,444.28-151,020.24-61,694.78

Finding the Fourth Proportional to 109,444.28, 151,020.24 and 61,694.78

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Solution

The fourth proportional to 109,444.28, 151,020.24 and 61,694.78 is: 85,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,444.28 : 151,020.24 = 61,694.78 : x
  2. Step 2: Convert to fraction form
    109,444.28/151,020.24 = 61,694.78/x
  3. Step 3: Cross multiply
    109,444.28x = 151,020.24 × 61,694.78
  4. Step 4: Simplify right side
    109,444.28x = 9,317,159,727.25
  5. Step 5: Solve for x
    x = 9,317,159,727.25/109,444.28
  6. Step 6: Final answer
    x = 85,131.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.