Home / 123,939.77-171,036.09-67,351.14

Finding the Fourth Proportional to 123,939.77, 171,036.09 and 67,351.14

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Solution

The fourth proportional to 123,939.77, 171,036.09 and 67,351.14 is: 92,944.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,939.77 : 171,036.09 = 67,351.14 : x
  2. Step 2: Convert to fraction form
    123,939.77/171,036.09 = 67,351.14/x
  3. Step 3: Cross multiply
    123,939.77x = 171,036.09 × 67,351.14
  4. Step 4: Simplify right side
    123,939.77x = 11,519,475,642.64
  5. Step 5: Solve for x
    x = 11,519,475,642.64/123,939.77
  6. Step 6: Final answer
    x = 92,944.15

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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.