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Finding the Fourth Proportional to 168,029.40, 252,044.10 and 129,975.60

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Solution

The fourth proportional to 168,029.40, 252,044.10 and 129,975.60 is: 194,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,029.40 : 252,044.10 = 129,975.60 : x
  2. Step 2: Convert to fraction form
    168,029.40/252,044.10 = 129,975.60/x
  3. Step 3: Cross multiply
    168,029.40x = 252,044.10 × 129,975.60
  4. Step 4: Simplify right side
    168,029.40x = 32,759,583,123.96
  5. Step 5: Solve for x
    x = 32,759,583,123.96/168,029.40
  6. Step 6: Final answer
    x = 194,963.40

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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.