Home / 118,226.20-177,047.70-78,568.60

Finding the Fourth Proportional to 118,226.20, 177,047.70 and 78,568.60

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Solution

The fourth proportional to 118,226.20, 177,047.70 and 78,568.60 is: 117,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,226.20 : 177,047.70 = 78,568.60 : x
  2. Step 2: Convert to fraction form
    118,226.20/177,047.70 = 78,568.60/x
  3. Step 3: Cross multiply
    118,226.20x = 177,047.70 × 78,568.60
  4. Step 4: Simplify right side
    118,226.20x = 13,910,389,922.22
  5. Step 5: Solve for x
    x = 13,910,389,922.22/118,226.20
  6. Step 6: Final answer
    x = 117,659.11

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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.