Home / 123,277.56-170,122.23-66,687.72

Finding the Fourth Proportional to 123,277.56, 170,122.23 and 66,687.72

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Solution

The fourth proportional to 123,277.56, 170,122.23 and 66,687.72 is: 92,028.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,277.56 : 170,122.23 = 66,687.72 : x
  2. Step 2: Convert to fraction form
    123,277.56/170,122.23 = 66,687.72/x
  3. Step 3: Cross multiply
    123,277.56x = 170,122.23 × 66,687.72
  4. Step 4: Simplify right side
    123,277.56x = 11,345,063,640.02
  5. Step 5: Solve for x
    x = 11,345,063,640.02/123,277.56
  6. Step 6: Final answer
    x = 92,028.62

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1.5x scale

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.