Home / 112,121.73-168,178.94-45,542.16

Finding the Fourth Proportional to 112,121.73, 168,178.94 and 45,542.16

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Solution

The fourth proportional to 112,121.73, 168,178.94 and 45,542.16 is: 68,311.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,121.73 : 168,178.94 = 45,542.16 : x
  2. Step 2: Convert to fraction form
    112,121.73/168,178.94 = 45,542.16/x
  3. Step 3: Cross multiply
    112,121.73x = 168,178.94 × 45,542.16
  4. Step 4: Simplify right side
    112,121.73x = 7,659,232,194.11
  5. Step 5: Solve for x
    x = 7,659,232,194.11/112,121.73
  6. Step 6: Final answer
    x = 68,311.76

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1.5x scale

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.