Home / 123,277.25-170,123.82-66,689.84

Finding the Fourth Proportional to 123,277.25, 170,123.82 and 66,689.84

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Solution

The fourth proportional to 123,277.25, 170,123.82 and 66,689.84 is: 92,032.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,277.25 : 170,123.82 = 66,689.84 : x
  2. Step 2: Convert to fraction form
    123,277.25/170,123.82 = 66,689.84/x
  3. Step 3: Cross multiply
    123,277.25x = 170,123.82 × 66,689.84
  4. Step 4: Simplify right side
    123,277.25x = 11,345,530,335.99
  5. Step 5: Solve for x
    x = 11,345,530,335.99/123,277.25
  6. Step 6: Final answer
    x = 92,032.64

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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.