Home / 135,591.37-187,103.62-75,159.09

Finding the Fourth Proportional to 135,591.37, 187,103.62 and 75,159.09

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Solution

The fourth proportional to 135,591.37, 187,103.62 and 75,159.09 is: 103,712.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,591.37 : 187,103.62 = 75,159.09 : x
  2. Step 2: Convert to fraction form
    135,591.37/187,103.62 = 75,159.09/x
  3. Step 3: Cross multiply
    135,591.37x = 187,103.62 × 75,159.09
  4. Step 4: Simplify right side
    135,591.37x = 14,062,537,908.85
  5. Step 5: Solve for x
    x = 14,062,537,908.85/135,591.37
  6. Step 6: Final answer
    x = 103,712.63

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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.