Home / 115,234.20-172,851.30-108,673.20

Finding the Fourth Proportional to 115,234.20, 172,851.30 and 108,673.20

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Solution

The fourth proportional to 115,234.20, 172,851.30 and 108,673.20 is: 163,009.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,234.20 : 172,851.30 = 108,673.20 : x
  2. Step 2: Convert to fraction form
    115,234.20/172,851.30 = 108,673.20/x
  3. Step 3: Cross multiply
    115,234.20x = 172,851.30 × 108,673.20
  4. Step 4: Simplify right side
    115,234.20x = 18,784,303,895.16
  5. Step 5: Solve for x
    x = 18,784,303,895.16/115,234.20
  6. Step 6: Final answer
    x = 163,009.80

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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.