Home / 137,037.68-205,512.78-43,521.56

Finding the Fourth Proportional to 137,037.68, 205,512.78 and 43,521.56

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Solution

The fourth proportional to 137,037.68, 205,512.78 and 43,521.56 is: 65,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,037.68 : 205,512.78 = 43,521.56 : x
  2. Step 2: Convert to fraction form
    137,037.68/205,512.78 = 43,521.56/x
  3. Step 3: Cross multiply
    137,037.68x = 205,512.78 × 43,521.56
  4. Step 4: Simplify right side
    137,037.68x = 8,944,236,785.54
  5. Step 5: Solve for x
    x = 8,944,236,785.54/137,037.68
  6. Step 6: Final answer
    x = 65,268.45

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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.