Home / 142,736.20-214,104.30-89,974.60

Finding the Fourth Proportional to 142,736.20, 214,104.30 and 89,974.60

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Solution

The fourth proportional to 142,736.20, 214,104.30 and 89,974.60 is: 134,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,736.20 : 214,104.30 = 89,974.60 : x
  2. Step 2: Convert to fraction form
    142,736.20/214,104.30 = 89,974.60/x
  3. Step 3: Cross multiply
    142,736.20x = 214,104.30 × 89,974.60
  4. Step 4: Simplify right side
    142,736.20x = 19,263,948,750.78
  5. Step 5: Solve for x
    x = 19,263,948,750.78/142,736.20
  6. Step 6: Final answer
    x = 134,961.90

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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.