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Finding the Fourth Proportional to 171,053.88, 256,622.66 and 120,551.45

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Solution

The fourth proportional to 171,053.88, 256,622.66 and 120,551.45 is: 180,856.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,053.88 : 256,622.66 = 120,551.45 : x
  2. Step 2: Convert to fraction form
    171,053.88/256,622.66 = 120,551.45/x
  3. Step 3: Cross multiply
    171,053.88x = 256,622.66 × 120,551.45
  4. Step 4: Simplify right side
    171,053.88x = 30,936,231,879.99
  5. Step 5: Solve for x
    x = 30,936,231,879.99/171,053.88
  6. Step 6: Final answer
    x = 180,856.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.