Home / 135,938.45-187,589.79-75,512.93

Finding the Fourth Proportional to 135,938.45, 187,589.79 and 75,512.93

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Solution

The fourth proportional to 135,938.45, 187,589.79 and 75,512.93 is: 104,204.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,938.45 : 187,589.79 = 75,512.93 : x
  2. Step 2: Convert to fraction form
    135,938.45/187,589.79 = 75,512.93/x
  3. Step 3: Cross multiply
    135,938.45x = 187,589.79 × 75,512.93
  4. Step 4: Simplify right side
    135,938.45x = 14,165,453,743.04
  5. Step 5: Solve for x
    x = 14,165,453,743.04/135,938.45
  6. Step 6: Final answer
    x = 104,204.91

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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.