Home / 109,863.92-151,618.56-62,121.72

Finding the Fourth Proportional to 109,863.92, 151,618.56 and 62,121.72

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Solution

The fourth proportional to 109,863.92, 151,618.56 and 62,121.72 is: 85,731.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,863.92 : 151,618.56 = 62,121.72 : x
  2. Step 2: Convert to fraction form
    109,863.92/151,618.56 = 62,121.72/x
  3. Step 3: Cross multiply
    109,863.92x = 151,618.56 × 62,121.72
  4. Step 4: Simplify right side
    109,863.92x = 9,418,805,731.12
  5. Step 5: Solve for x
    x = 9,418,805,731.12/109,863.92
  6. Step 6: Final answer
    x = 85,731.56

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1.5x scale

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.