Home / 172,273.12-258,389.17-45,922.84

Finding the Fourth Proportional to 172,273.12, 258,389.17 and 45,922.84

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Solution

The fourth proportional to 172,273.12, 258,389.17 and 45,922.84 is: 68,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,273.12 : 258,389.17 = 45,922.84 : x
  2. Step 2: Convert to fraction form
    172,273.12/258,389.17 = 45,922.84/x
  3. Step 3: Cross multiply
    172,273.12x = 258,389.17 × 45,922.84
  4. Step 4: Simplify right side
    172,273.12x = 11,865,963,750.86
  5. Step 5: Solve for x
    x = 11,865,963,750.86/172,273.12
  6. Step 6: Final answer
    x = 68,878.79

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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.