Home / 172,350.60-258,720.30-133,081.80

Finding the Fourth Proportional to 172,350.60, 258,720.30 and 133,081.80

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Solution

The fourth proportional to 172,350.60, 258,720.30 and 133,081.80 is: 199,772.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,350.60 : 258,720.30 = 133,081.80 : x
  2. Step 2: Convert to fraction form
    172,350.60/258,720.30 = 133,081.80/x
  3. Step 3: Cross multiply
    172,350.60x = 258,720.30 × 133,081.80
  4. Step 4: Simplify right side
    172,350.60x = 34,430,963,220.54
  5. Step 5: Solve for x
    x = 34,430,963,220.54/172,350.60
  6. Step 6: Final answer
    x = 199,772.81

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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.