Home / 172,867.50-259,403.31-73,021.23

Finding the Fourth Proportional to 172,867.50, 259,403.31 and 73,021.23

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Solution

The fourth proportional to 172,867.50, 259,403.31 and 73,021.23 is: 109,574.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,867.50 : 259,403.31 = 73,021.23 : x
  2. Step 2: Convert to fraction form
    172,867.50/259,403.31 = 73,021.23/x
  3. Step 3: Cross multiply
    172,867.50x = 259,403.31 × 73,021.23
  4. Step 4: Simplify right side
    172,867.50x = 18,941,948,762.27
  5. Step 5: Solve for x
    x = 18,941,948,762.27/172,867.50
  6. Step 6: Final answer
    x = 109,574.96

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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.