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Finding the Fourth Proportional to 172,948.73, 259,473.32 and 71,728.22

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Solution

The fourth proportional to 172,948.73, 259,473.32 and 71,728.22 is: 107,613.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,948.73 : 259,473.32 = 71,728.22 : x
  2. Step 2: Convert to fraction form
    172,948.73/259,473.32 = 71,728.22/x
  3. Step 3: Cross multiply
    172,948.73x = 259,473.32 × 71,728.22
  4. Step 4: Simplify right side
    172,948.73x = 18,611,558,263.04
  5. Step 5: Solve for x
    x = 18,611,558,263.04/172,948.73
  6. Step 6: Final answer
    x = 107,613.16

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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.