Home / 135,972.24-187,640.46-75,543

Finding the Fourth Proportional to 135,972.24, 187,640.46 and 75,543

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Solution

The fourth proportional to 135,972.24, 187,640.46 and 75,543 is: 104,248.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,972.24 : 187,640.46 = 75,543 : x
  2. Step 2: Convert to fraction form
    135,972.24/187,640.46 = 75,543/x
  3. Step 3: Cross multiply
    135,972.24x = 187,640.46 × 75,543
  4. Step 4: Simplify right side
    135,972.24x = 14,174,923,269.78
  5. Step 5: Solve for x
    x = 14,174,923,269.78/135,972.24
  6. Step 6: Final answer
    x = 104,248.66

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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.