Home / 135,020.27-186,331.65-80,604.04

Finding the Fourth Proportional to 135,020.27, 186,331.65 and 80,604.04

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Solution

The fourth proportional to 135,020.27, 186,331.65 and 80,604.04 is: 111,235.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,020.27 : 186,331.65 = 80,604.04 : x
  2. Step 2: Convert to fraction form
    135,020.27/186,331.65 = 80,604.04/x
  3. Step 3: Cross multiply
    135,020.27x = 186,331.65 × 80,604.04
  4. Step 4: Simplify right side
    135,020.27x = 15,019,082,838.21
  5. Step 5: Solve for x
    x = 15,019,082,838.21/135,020.27
  6. Step 6: Final answer
    x = 111,235.77

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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.