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Finding the Fourth Proportional to 172,705.83, 259,093.67 and 72,866.27

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Solution

The fourth proportional to 172,705.83, 259,093.67 and 72,866.27 is: 109,314.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,705.83 : 259,093.67 = 72,866.27 : x
  2. Step 2: Convert to fraction form
    172,705.83/259,093.67 = 72,866.27/x
  3. Step 3: Cross multiply
    172,705.83x = 259,093.67 × 72,866.27
  4. Step 4: Simplify right side
    172,705.83x = 18,879,187,653.71
  5. Step 5: Solve for x
    x = 18,879,187,653.71/172,705.83
  6. Step 6: Final answer
    x = 109,314.13

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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.