Home / 123,786.84-170,829.36-67,201.92

Finding the Fourth Proportional to 123,786.84, 170,829.36 and 67,201.92

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Solution

The fourth proportional to 123,786.84, 170,829.36 and 67,201.92 is: 92,740.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,786.84 : 170,829.36 = 67,201.92 : x
  2. Step 2: Convert to fraction form
    123,786.84/170,829.36 = 67,201.92/x
  3. Step 3: Cross multiply
    123,786.84x = 170,829.36 × 67,201.92
  4. Step 4: Simplify right side
    123,786.84x = 11,480,060,984.37
  5. Step 5: Solve for x
    x = 11,480,060,984.37/123,786.84
  6. Step 6: Final answer
    x = 92,740.56

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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.