Home / 135,589.28-187,093.56-75,159.91

Finding the Fourth Proportional to 135,589.28, 187,093.56 and 75,159.91

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Solution

The fourth proportional to 135,589.28, 187,093.56 and 75,159.91 is: 103,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,589.28 : 187,093.56 = 75,159.91 : x
  2. Step 2: Convert to fraction form
    135,589.28/187,093.56 = 75,159.91/x
  3. Step 3: Cross multiply
    135,589.28x = 187,093.56 × 75,159.91
  4. Step 4: Simplify right side
    135,589.28x = 14,061,935,131.18
  5. Step 5: Solve for x
    x = 14,061,935,131.18/135,589.28
  6. Step 6: Final answer
    x = 103,709.79

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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.