Home / 123,919.05-171,013.05-67,330.44

Finding the Fourth Proportional to 123,919.05, 171,013.05 and 67,330.44

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Solution

The fourth proportional to 123,919.05, 171,013.05 and 67,330.44 is: 92,918.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,919.05 : 171,013.05 = 67,330.44 : x
  2. Step 2: Convert to fraction form
    123,919.05/171,013.05 = 67,330.44/x
  3. Step 3: Cross multiply
    123,919.05x = 171,013.05 × 67,330.44
  4. Step 4: Simplify right side
    123,919.05x = 11,514,383,902.24
  5. Step 5: Solve for x
    x = 11,514,383,902.24/123,919.05
  6. Step 6: Final answer
    x = 92,918.59

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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.