Home / 137,192.40-189,286.92-80,583.12

Finding the Fourth Proportional to 137,192.40, 189,286.92 and 80,583.12

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Solution

The fourth proportional to 137,192.40, 189,286.92 and 80,583.12 is: 111,182.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,192.40 : 189,286.92 = 80,583.12 : x
  2. Step 2: Convert to fraction form
    137,192.40/189,286.92 = 80,583.12/x
  3. Step 3: Cross multiply
    137,192.40x = 189,286.92 × 80,583.12
  4. Step 4: Simplify right side
    137,192.40x = 15,253,330,588.79
  5. Step 5: Solve for x
    x = 15,253,330,588.79/137,192.40
  6. Step 6: Final answer
    x = 111,182.04

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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.