Home / 123,939.51-171,036.54-67,350.75

Finding the Fourth Proportional to 123,939.51, 171,036.54 and 67,350.75

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Solution

The fourth proportional to 123,939.51, 171,036.54 and 67,350.75 is: 92,944.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,939.51 : 171,036.54 = 67,350.75 : x
  2. Step 2: Convert to fraction form
    123,939.51/171,036.54 = 67,350.75/x
  3. Step 3: Cross multiply
    123,939.51x = 171,036.54 × 67,350.75
  4. Step 4: Simplify right side
    123,939.51x = 11,519,439,246.41
  5. Step 5: Solve for x
    x = 11,519,439,246.41/123,939.51
  6. Step 6: Final answer
    x = 92,944.04

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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.