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Finding the Fourth Proportional to 170,171.82, 254,868.93 and 81,487.62

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Solution

The fourth proportional to 170,171.82, 254,868.93 and 81,487.62 is: 122,045.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,171.82 : 254,868.93 = 81,487.62 : x
  2. Step 2: Convert to fraction form
    170,171.82/254,868.93 = 81,487.62/x
  3. Step 3: Cross multiply
    170,171.82x = 254,868.93 × 81,487.62
  4. Step 4: Simplify right side
    170,171.82x = 20,768,662,517.65
  5. Step 5: Solve for x
    x = 20,768,662,517.65/170,171.82
  6. Step 6: Final answer
    x = 122,045.25

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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.