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Finding the Fourth Proportional to 172,861.52, 259,292.32 and 54,542.12

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Solution

The fourth proportional to 172,861.52, 259,292.32 and 54,542.12 is: 81,813.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,861.52 : 259,292.32 = 54,542.12 : x
  2. Step 2: Convert to fraction form
    172,861.52/259,292.32 = 54,542.12/x
  3. Step 3: Cross multiply
    172,861.52x = 259,292.32 × 54,542.12
  4. Step 4: Simplify right side
    172,861.52x = 14,142,352,832.52
  5. Step 5: Solve for x
    x = 14,142,352,832.52/172,861.52
  6. Step 6: Final answer
    x = 81,813.19

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1.5x scale

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.