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Finding the Fourth Proportional to 140,000.20, 210,000.30 and 132,418.60

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Solution

The fourth proportional to 140,000.20, 210,000.30 and 132,418.60 is: 198,627.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,000.20 : 210,000.30 = 132,418.60 : x
  2. Step 2: Convert to fraction form
    140,000.20/210,000.30 = 132,418.60/x
  3. Step 3: Cross multiply
    140,000.20x = 210,000.30 × 132,418.60
  4. Step 4: Simplify right side
    140,000.20x = 27,807,945,725.58
  5. Step 5: Solve for x
    x = 27,807,945,725.58/140,000.20
  6. Step 6: Final answer
    x = 198,627.90

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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.