Home / 123,788.13-170,829.68-67,199.50

Finding the Fourth Proportional to 123,788.13, 170,829.68 and 67,199.50

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Solution

The fourth proportional to 123,788.13, 170,829.68 and 67,199.50 is: 92,736.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,788.13 : 170,829.68 = 67,199.50 : x
  2. Step 2: Convert to fraction form
    123,788.13/170,829.68 = 67,199.50/x
  3. Step 3: Cross multiply
    123,788.13x = 170,829.68 × 67,199.50
  4. Step 4: Simplify right side
    123,788.13x = 11,479,669,081.16
  5. Step 5: Solve for x
    x = 11,479,669,081.16/123,788.13
  6. Step 6: Final answer
    x = 92,736.43

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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.