Home / 135,822.78-187,415.46-75,393.90

Finding the Fourth Proportional to 135,822.78, 187,415.46 and 75,393.90

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Solution

The fourth proportional to 135,822.78, 187,415.46 and 75,393.90 is: 104,032.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,822.78 : 187,415.46 = 75,393.90 : x
  2. Step 2: Convert to fraction form
    135,822.78/187,415.46 = 75,393.90/x
  3. Step 3: Cross multiply
    135,822.78x = 187,415.46 × 75,393.90
  4. Step 4: Simplify right side
    135,822.78x = 14,129,982,449.69
  5. Step 5: Solve for x
    x = 14,129,982,449.69/135,822.78
  6. Step 6: Final answer
    x = 104,032.49

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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.