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Finding the Fourth Proportional to 133,527.40, 200,420.70 and 67,042.60

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Solution

The fourth proportional to 133,527.40, 200,420.70 and 67,042.60 is: 100,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,527.40 : 200,420.70 = 67,042.60 : x
  2. Step 2: Convert to fraction form
    133,527.40/200,420.70 = 67,042.60/x
  3. Step 3: Cross multiply
    133,527.40x = 200,420.70 × 67,042.60
  4. Step 4: Simplify right side
    133,527.40x = 13,436,724,821.82
  5. Step 5: Solve for x
    x = 13,436,724,821.82/133,527.40
  6. Step 6: Final answer
    x = 100,628.97

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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.