Home / 133,850.61-201,086.96-78,485.49

Finding the Fourth Proportional to 133,850.61, 201,086.96 and 78,485.49

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Solution

The fourth proportional to 133,850.61, 201,086.96 and 78,485.49 is: 117,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,850.61 : 201,086.96 = 78,485.49 : x
  2. Step 2: Convert to fraction form
    133,850.61/201,086.96 = 78,485.49/x
  3. Step 3: Cross multiply
    133,850.61x = 201,086.96 × 78,485.49
  4. Step 4: Simplify right side
    133,850.61x = 15,782,408,195.78
  5. Step 5: Solve for x
    x = 15,782,408,195.78/133,850.61
  6. Step 6: Final answer
    x = 117,910.62

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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.