Home / 135,590.78-187,095.62-75,161.41

Finding the Fourth Proportional to 135,590.78, 187,095.62 and 75,161.41

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Solution

The fourth proportional to 135,590.78, 187,095.62 and 75,161.41 is: 103,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,590.78 : 187,095.62 = 75,161.41 : x
  2. Step 2: Convert to fraction form
    135,590.78/187,095.62 = 75,161.41/x
  3. Step 3: Cross multiply
    135,590.78x = 187,095.62 × 75,161.41
  4. Step 4: Simplify right side
    135,590.78x = 14,062,370,604.02
  5. Step 5: Solve for x
    x = 14,062,370,604.02/135,590.78
  6. Step 6: Final answer
    x = 103,711.85

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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.