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Finding the Fourth Proportional to 168,005.30, 252,007.95 and 74,511.05

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Solution

The fourth proportional to 168,005.30, 252,007.95 and 74,511.05 is: 111,766.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,005.30 : 252,007.95 = 74,511.05 : x
  2. Step 2: Convert to fraction form
    168,005.30/252,007.95 = 74,511.05/x
  3. Step 3: Cross multiply
    168,005.30x = 252,007.95 × 74,511.05
  4. Step 4: Simplify right side
    168,005.30x = 18,777,376,962.85
  5. Step 5: Solve for x
    x = 18,777,376,962.85/168,005.30
  6. Step 6: Final answer
    x = 111,766.58

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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.