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Finding the Fourth Proportional to 168,022.90, 252,034.35 and 129,969.10

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Solution

The fourth proportional to 168,022.90, 252,034.35 and 129,969.10 is: 194,953.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,022.90 : 252,034.35 = 129,969.10 : x
  2. Step 2: Convert to fraction form
    168,022.90/252,034.35 = 129,969.10/x
  3. Step 3: Cross multiply
    168,022.90x = 252,034.35 × 129,969.10
  4. Step 4: Simplify right side
    168,022.90x = 32,756,677,638.59
  5. Step 5: Solve for x
    x = 32,756,677,638.59/168,022.90
  6. Step 6: Final answer
    x = 194,953.65

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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.