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Finding the Fourth Proportional to 91,556.73, 136,724.22 and 71,611.29

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Solution

The fourth proportional to 91,556.73, 136,724.22 and 71,611.29 is: 106,939.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,556.73 : 136,724.22 = 71,611.29 : x
  2. Step 2: Convert to fraction form
    91,556.73/136,724.22 = 71,611.29/x
  3. Step 3: Cross multiply
    91,556.73x = 136,724.22 × 71,611.29
  4. Step 4: Simplify right side
    91,556.73x = 9,790,997,768.44
  5. Step 5: Solve for x
    x = 9,790,997,768.44/91,556.73
  6. Step 6: Final answer
    x = 106,939.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.