Home / 112,944.06-155,860-64,542.92

Finding the Fourth Proportional to 112,944.06, 155,860 and 64,542.92

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Solution

The fourth proportional to 112,944.06, 155,860 and 64,542.92 is: 89,067.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,944.06 : 155,860 = 64,542.92 : x
  2. Step 2: Convert to fraction form
    112,944.06/155,860 = 64,542.92/x
  3. Step 3: Cross multiply
    112,944.06x = 155,860 × 64,542.92
  4. Step 4: Simplify right side
    112,944.06x = 10,059,659,511.20
  5. Step 5: Solve for x
    x = 10,059,659,511.20/112,944.06
  6. Step 6: Final answer
    x = 89,067.63

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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.