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Finding the Fourth Proportional to 172,942.30, 259,522.80 and 101,864.80

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Solution

The fourth proportional to 172,942.30, 259,522.80 and 101,864.80 is: 152,861.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,942.30 : 259,522.80 = 101,864.80 : x
  2. Step 2: Convert to fraction form
    172,942.30/259,522.80 = 101,864.80/x
  3. Step 3: Cross multiply
    172,942.30x = 259,522.80 × 101,864.80
  4. Step 4: Simplify right side
    172,942.30x = 26,436,238,117.44
  5. Step 5: Solve for x
    x = 26,436,238,117.44/172,942.30
  6. Step 6: Final answer
    x = 152,861.61

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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.