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Finding the Fourth Proportional to 168,020.40, 252,030.60 and 129,966.60

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Solution

The fourth proportional to 168,020.40, 252,030.60 and 129,966.60 is: 194,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,020.40 : 252,030.60 = 129,966.60 : x
  2. Step 2: Convert to fraction form
    168,020.40/252,030.60 = 129,966.60/x
  3. Step 3: Cross multiply
    168,020.40x = 252,030.60 × 129,966.60
  4. Step 4: Simplify right side
    168,020.40x = 32,755,560,177.96
  5. Step 5: Solve for x
    x = 32,755,560,177.96/168,020.40
  6. Step 6: Final answer
    x = 194,949.90

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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.