Home / 168,021.90-252,032.85-129,968.10

Finding the Fourth Proportional to 168,021.90, 252,032.85 and 129,968.10

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Solution

The fourth proportional to 168,021.90, 252,032.85 and 129,968.10 is: 194,952.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,021.90 : 252,032.85 = 129,968.10 : x
  2. Step 2: Convert to fraction form
    168,021.90/252,032.85 = 129,968.10/x
  3. Step 3: Cross multiply
    168,021.90x = 252,032.85 × 129,968.10
  4. Step 4: Simplify right side
    168,021.90x = 32,756,230,652.09
  5. Step 5: Solve for x
    x = 32,756,230,652.09/168,021.90
  6. Step 6: Final answer
    x = 194,952.15

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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.