Home / 133,398.20-200,039.70-66,812.60

Finding the Fourth Proportional to 133,398.20, 200,039.70 and 66,812.60

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Solution

The fourth proportional to 133,398.20, 200,039.70 and 66,812.60 is: 100,190.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,398.20 : 200,039.70 = 66,812.60 : x
  2. Step 2: Convert to fraction form
    133,398.20/200,039.70 = 66,812.60/x
  3. Step 3: Cross multiply
    133,398.20x = 200,039.70 × 66,812.60
  4. Step 4: Simplify right side
    133,398.20x = 13,365,172,460.22
  5. Step 5: Solve for x
    x = 13,365,172,460.22/133,398.20
  6. Step 6: Final answer
    x = 100,190.05

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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.