Home / 172,098.49-258,173.94-87,812.59

Finding the Fourth Proportional to 172,098.49, 258,173.94 and 87,812.59

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Solution

The fourth proportional to 172,098.49, 258,173.94 and 87,812.59 is: 131,732.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,098.49 : 258,173.94 = 87,812.59 : x
  2. Step 2: Convert to fraction form
    172,098.49/258,173.94 = 87,812.59/x
  3. Step 3: Cross multiply
    172,098.49x = 258,173.94 × 87,812.59
  4. Step 4: Simplify right side
    172,098.49x = 22,670,922,341.90
  5. Step 5: Solve for x
    x = 22,670,922,341.90/172,098.49
  6. Step 6: Final answer
    x = 131,732.26

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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.