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Finding the Fourth Proportional to 172,348.92, 258,521.45 and 67,241.70

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Solution

The fourth proportional to 172,348.92, 258,521.45 and 67,241.70 is: 100,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,348.92 : 258,521.45 = 67,241.70 : x
  2. Step 2: Convert to fraction form
    172,348.92/258,521.45 = 67,241.70/x
  3. Step 3: Cross multiply
    172,348.92x = 258,521.45 × 67,241.70
  4. Step 4: Simplify right side
    172,348.92x = 17,383,421,448.26
  5. Step 5: Solve for x
    x = 17,383,421,448.26/172,348.92
  6. Step 6: Final answer
    x = 100,861.80

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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.