Home / 123,249.06-170,083.71-66,660.42

Finding the Fourth Proportional to 123,249.06, 170,083.71 and 66,660.42

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Solution

The fourth proportional to 123,249.06, 170,083.71 and 66,660.42 is: 91,991.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,249.06 : 170,083.71 = 66,660.42 : x
  2. Step 2: Convert to fraction form
    123,249.06/170,083.71 = 66,660.42/x
  3. Step 3: Cross multiply
    123,249.06x = 170,083.71 × 66,660.42
  4. Step 4: Simplify right side
    123,249.06x = 11,337,851,543.76
  5. Step 5: Solve for x
    x = 11,337,851,543.76/123,249.06
  6. Step 6: Final answer
    x = 91,991.38

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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.