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Finding the Fourth Proportional to 172,101.36, 258,142.76 and 53,759.12

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Solution

The fourth proportional to 172,101.36, 258,142.76 and 53,759.12 is: 80,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,101.36 : 258,142.76 = 53,759.12 : x
  2. Step 2: Convert to fraction form
    172,101.36/258,142.76 = 53,759.12/x
  3. Step 3: Cross multiply
    172,101.36x = 258,142.76 × 53,759.12
  4. Step 4: Simplify right side
    172,101.36x = 13,877,527,611.97
  5. Step 5: Solve for x
    x = 13,877,527,611.97/172,101.36
  6. Step 6: Final answer
    x = 80,635.78

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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.