Home / 137,207.42-189,286.14-80,593.28

Finding the Fourth Proportional to 137,207.42, 189,286.14 and 80,593.28

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Solution

The fourth proportional to 137,207.42, 189,286.14 and 80,593.28 is: 111,183.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,207.42 : 189,286.14 = 80,593.28 : x
  2. Step 2: Convert to fraction form
    137,207.42/189,286.14 = 80,593.28/x
  3. Step 3: Cross multiply
    137,207.42x = 189,286.14 × 80,593.28
  4. Step 4: Simplify right side
    137,207.42x = 15,255,190,881.14
  5. Step 5: Solve for x
    x = 15,255,190,881.14/137,207.42
  6. Step 6: Final answer
    x = 111,183.42

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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.