Home / 135,789.68-187,400.94-75,359.22

Finding the Fourth Proportional to 135,789.68, 187,400.94 and 75,359.22

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Solution

The fourth proportional to 135,789.68, 187,400.94 and 75,359.22 is: 104,001.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,789.68 : 187,400.94 = 75,359.22 : x
  2. Step 2: Convert to fraction form
    135,789.68/187,400.94 = 75,359.22/x
  3. Step 3: Cross multiply
    135,789.68x = 187,400.94 × 75,359.22
  4. Step 4: Simplify right side
    135,789.68x = 14,122,388,665.67
  5. Step 5: Solve for x
    x = 14,122,388,665.67/135,789.68
  6. Step 6: Final answer
    x = 104,001.93

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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.