Home / 172,564.20-258,550.65-137,134.80

Finding the Fourth Proportional to 172,564.20, 258,550.65 and 137,134.80

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Solution

The fourth proportional to 172,564.20, 258,550.65 and 137,134.80 is: 205,467.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,564.20 : 258,550.65 = 137,134.80 : x
  2. Step 2: Convert to fraction form
    172,564.20/258,550.65 = 137,134.80/x
  3. Step 3: Cross multiply
    172,564.20x = 258,550.65 × 137,134.80
  4. Step 4: Simplify right side
    172,564.20x = 35,456,291,677.62
  5. Step 5: Solve for x
    x = 35,456,291,677.62/172,564.20
  6. Step 6: Final answer
    x = 205,467.25

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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.