Home / 172,922.10-259,383.15-106,145.70

Finding the Fourth Proportional to 172,922.10, 259,383.15 and 106,145.70

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Solution

The fourth proportional to 172,922.10, 259,383.15 and 106,145.70 is: 159,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,922.10 : 259,383.15 = 106,145.70 : x
  2. Step 2: Convert to fraction form
    172,922.10/259,383.15 = 106,145.70/x
  3. Step 3: Cross multiply
    172,922.10x = 259,383.15 × 106,145.70
  4. Step 4: Simplify right side
    172,922.10x = 27,532,406,024.96
  5. Step 5: Solve for x
    x = 27,532,406,024.96/172,922.10
  6. Step 6: Final answer
    x = 159,218.55

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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.