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Finding the Fourth Proportional to 169,946.02, 254,919 and 80,929.62

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Solution

The fourth proportional to 169,946.02, 254,919 and 80,929.62 is: 121,394.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,946.02 : 254,919 = 80,929.62 : x
  2. Step 2: Convert to fraction form
    169,946.02/254,919 = 80,929.62/x
  3. Step 3: Cross multiply
    169,946.02x = 254,919 × 80,929.62
  4. Step 4: Simplify right side
    169,946.02x = 20,630,497,800.78
  5. Step 5: Solve for x
    x = 20,630,497,800.78/169,946.02
  6. Step 6: Final answer
    x = 121,394.42

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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.