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Finding the Fourth Proportional to 133,400.80, 200,101.20 and 128,735.20

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Solution

The fourth proportional to 133,400.80, 200,101.20 and 128,735.20 is: 193,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,400.80 : 200,101.20 = 128,735.20 : x
  2. Step 2: Convert to fraction form
    133,400.80/200,101.20 = 128,735.20/x
  3. Step 3: Cross multiply
    133,400.80x = 200,101.20 × 128,735.20
  4. Step 4: Simplify right side
    133,400.80x = 25,760,068,002.24
  5. Step 5: Solve for x
    x = 25,760,068,002.24/133,400.80
  6. Step 6: Final answer
    x = 193,102.80

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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.