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Finding the Fourth Proportional to 123,961.44, 171,019.44 and 76,199.52

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Solution

The fourth proportional to 123,961.44, 171,019.44 and 76,199.52 is: 105,126.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,961.44 : 171,019.44 = 76,199.52 : x
  2. Step 2: Convert to fraction form
    123,961.44/171,019.44 = 76,199.52/x
  3. Step 3: Cross multiply
    123,961.44x = 171,019.44 × 76,199.52
  4. Step 4: Simplify right side
    123,961.44x = 13,031,599,238.67
  5. Step 5: Solve for x
    x = 13,031,599,238.67/123,961.44
  6. Step 6: Final answer
    x = 105,126.23

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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.