Home / 135,830.26-187,436.39-75,396.15

Finding the Fourth Proportional to 135,830.26, 187,436.39 and 75,396.15

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Solution

The fourth proportional to 135,830.26, 187,436.39 and 75,396.15 is: 104,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,830.26 : 187,436.39 = 75,396.15 : x
  2. Step 2: Convert to fraction form
    135,830.26/187,436.39 = 75,396.15/x
  3. Step 3: Cross multiply
    135,830.26x = 187,436.39 × 75,396.15
  4. Step 4: Simplify right side
    135,830.26x = 14,131,981,798.92
  5. Step 5: Solve for x
    x = 14,131,981,798.92/135,830.26
  6. Step 6: Final answer
    x = 104,041.48

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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.