Home / 131,561.38-181,550.39-74,202.18

Finding the Fourth Proportional to 131,561.38, 181,550.39 and 74,202.18

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Solution

The fourth proportional to 131,561.38, 181,550.39 and 74,202.18 is: 102,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,561.38 : 181,550.39 = 74,202.18 : x
  2. Step 2: Convert to fraction form
    131,561.38/181,550.39 = 74,202.18/x
  3. Step 3: Cross multiply
    131,561.38x = 181,550.39 × 74,202.18
  4. Step 4: Simplify right side
    131,561.38x = 13,471,433,874.72
  5. Step 5: Solve for x
    x = 13,471,433,874.72/131,561.38
  6. Step 6: Final answer
    x = 102,396.57

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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.