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Finding the Fourth Proportional to 172,114.20, 258,244.20 and 108,982.80

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Solution

The fourth proportional to 172,114.20, 258,244.20 and 108,982.80 is: 163,520.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,114.20 : 258,244.20 = 108,982.80 : x
  2. Step 2: Convert to fraction form
    172,114.20/258,244.20 = 108,982.80/x
  3. Step 3: Cross multiply
    172,114.20x = 258,244.20 × 108,982.80
  4. Step 4: Simplify right side
    172,114.20x = 28,144,175,999.76
  5. Step 5: Solve for x
    x = 28,144,175,999.76/172,114.20
  6. Step 6: Final answer
    x = 163,520.36

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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.