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Finding the Fourth Proportional to 171,706.20, 257,559.30 and 148,086.60

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Solution

The fourth proportional to 171,706.20, 257,559.30 and 148,086.60 is: 222,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,706.20 : 257,559.30 = 148,086.60 : x
  2. Step 2: Convert to fraction form
    171,706.20/257,559.30 = 148,086.60/x
  3. Step 3: Cross multiply
    171,706.20x = 257,559.30 × 148,086.60
  4. Step 4: Simplify right side
    171,706.20x = 38,141,081,035.38
  5. Step 5: Solve for x
    x = 38,141,081,035.38/171,706.20
  6. Step 6: Final answer
    x = 222,129.90

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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.