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Finding the Fourth Proportional to 172,993.80, 259,442.10 and 54,701.40

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Solution

The fourth proportional to 172,993.80, 259,442.10 and 54,701.40 is: 82,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,993.80 : 259,442.10 = 54,701.40 : x
  2. Step 2: Convert to fraction form
    172,993.80/259,442.10 = 54,701.40/x
  3. Step 3: Cross multiply
    172,993.80x = 259,442.10 × 54,701.40
  4. Step 4: Simplify right side
    172,993.80x = 14,191,846,088.94
  5. Step 5: Solve for x
    x = 14,191,846,088.94/172,993.80
  6. Step 6: Final answer
    x = 82,036.73

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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.