Home / 123,939.14-171,039.26-67,350.51

Finding the Fourth Proportional to 123,939.14, 171,039.26 and 67,350.51

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Solution

The fourth proportional to 123,939.14, 171,039.26 and 67,350.51 is: 92,945.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,939.14 : 171,039.26 = 67,350.51 : x
  2. Step 2: Convert to fraction form
    123,939.14/171,039.26 = 67,350.51/x
  3. Step 3: Cross multiply
    123,939.14x = 171,039.26 × 67,350.51
  4. Step 4: Simplify right side
    123,939.14x = 11,519,581,559.40
  5. Step 5: Solve for x
    x = 11,519,581,559.40/123,939.14
  6. Step 6: Final answer
    x = 92,945.47

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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.