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Finding the Fourth Proportional to 133,402.80, 200,213.55 and 129,028.80

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Solution

The fourth proportional to 133,402.80, 200,213.55 and 129,028.80 is: 193,648.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,402.80 : 200,213.55 = 129,028.80 : x
  2. Step 2: Convert to fraction form
    133,402.80/200,213.55 = 129,028.80/x
  3. Step 3: Cross multiply
    133,402.80x = 200,213.55 × 129,028.80
  4. Step 4: Simplify right side
    133,402.80x = 25,833,314,100.24
  5. Step 5: Solve for x
    x = 25,833,314,100.24/133,402.80
  6. Step 6: Final answer
    x = 193,648.96

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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.