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Finding the Fourth Proportional to 133,601.60, 200,143.20 and 74,331.20

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Solution

The fourth proportional to 133,601.60, 200,143.20 and 74,331.20 is: 111,352.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,601.60 : 200,143.20 = 74,331.20 : x
  2. Step 2: Convert to fraction form
    133,601.60/200,143.20 = 74,331.20/x
  3. Step 3: Cross multiply
    133,601.60x = 200,143.20 × 74,331.20
  4. Step 4: Simplify right side
    133,601.60x = 14,876,884,227.84
  5. Step 5: Solve for x
    x = 14,876,884,227.84/133,601.60
  6. Step 6: Final answer
    x = 111,352.59

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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.