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Finding the Fourth Proportional to 133,540.60, 200,051.70 and 74,270.20

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Solution

The fourth proportional to 133,540.60, 200,051.70 and 74,270.20 is: 111,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,540.60 : 200,051.70 = 74,270.20 : x
  2. Step 2: Convert to fraction form
    133,540.60/200,051.70 = 74,270.20/x
  3. Step 3: Cross multiply
    133,540.60x = 200,051.70 × 74,270.20
  4. Step 4: Simplify right side
    133,540.60x = 14,857,879,769.34
  5. Step 5: Solve for x
    x = 14,857,879,769.34/133,540.60
  6. Step 6: Final answer
    x = 111,261.14

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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.