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Finding the Fourth Proportional to 172,947.98, 259,472.20 and 71,727.47

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Solution

The fourth proportional to 172,947.98, 259,472.20 and 71,727.47 is: 107,612.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,947.98 : 259,472.20 = 71,727.47 : x
  2. Step 2: Convert to fraction form
    172,947.98/259,472.20 = 71,727.47/x
  3. Step 3: Cross multiply
    172,947.98x = 259,472.20 × 71,727.47
  4. Step 4: Simplify right side
    172,947.98x = 18,611,282,964.65
  5. Step 5: Solve for x
    x = 18,611,282,964.65/172,947.98
  6. Step 6: Final answer
    x = 107,612.03

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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.