Home / 142,766.20-214,149.30-90,004.60

Finding the Fourth Proportional to 142,766.20, 214,149.30 and 90,004.60

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Solution

The fourth proportional to 142,766.20, 214,149.30 and 90,004.60 is: 135,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,766.20 : 214,149.30 = 90,004.60 : x
  2. Step 2: Convert to fraction form
    142,766.20/214,149.30 = 90,004.60/x
  3. Step 3: Cross multiply
    142,766.20x = 214,149.30 × 90,004.60
  4. Step 4: Simplify right side
    142,766.20x = 19,274,422,086.78
  5. Step 5: Solve for x
    x = 19,274,422,086.78/142,766.20
  6. Step 6: Final answer
    x = 135,006.90

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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.