Home / 134,147.15-185,082.70-80,412.56

Finding the Fourth Proportional to 134,147.15, 185,082.70 and 80,412.56

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Solution

The fourth proportional to 134,147.15, 185,082.70 and 80,412.56 is: 110,945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,147.15 : 185,082.70 = 80,412.56 : x
  2. Step 2: Convert to fraction form
    134,147.15/185,082.70 = 80,412.56/x
  3. Step 3: Cross multiply
    134,147.15x = 185,082.70 × 80,412.56
  4. Step 4: Simplify right side
    134,147.15x = 14,882,974,281.93
  5. Step 5: Solve for x
    x = 14,882,974,281.93/134,147.15
  6. Step 6: Final answer
    x = 110,945.14

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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.