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Finding the Fourth Proportional to 133,540.40, 200,440.20 and 67,055.60

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Solution

The fourth proportional to 133,540.40, 200,440.20 and 67,055.60 is: 100,648.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,540.40 : 200,440.20 = 67,055.60 : x
  2. Step 2: Convert to fraction form
    133,540.40/200,440.20 = 67,055.60/x
  3. Step 3: Cross multiply
    133,540.40x = 200,440.20 × 67,055.60
  4. Step 4: Simplify right side
    133,540.40x = 13,440,637,875.12
  5. Step 5: Solve for x
    x = 13,440,637,875.12/133,540.40
  6. Step 6: Final answer
    x = 100,648.48

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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.