Home / 112,983.76-155,924.08-68,286.16

Finding the Fourth Proportional to 112,983.76, 155,924.08 and 68,286.16

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Solution

The fourth proportional to 112,983.76, 155,924.08 and 68,286.16 is: 94,238.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,983.76 : 155,924.08 = 68,286.16 : x
  2. Step 2: Convert to fraction form
    112,983.76/155,924.08 = 68,286.16/x
  3. Step 3: Cross multiply
    112,983.76x = 155,924.08 × 68,286.16
  4. Step 4: Simplify right side
    112,983.76x = 10,647,456,674.73
  5. Step 5: Solve for x
    x = 10,647,456,674.73/112,983.76
  6. Step 6: Final answer
    x = 94,238.82

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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.