Home / 108,999.75-163,498-30,112.23

Finding the Fourth Proportional to 108,999.75, 163,498 and 30,112.23

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Solution

The fourth proportional to 108,999.75, 163,498 and 30,112.23 is: 45,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,999.75 : 163,498 = 30,112.23 : x
  2. Step 2: Convert to fraction form
    108,999.75/163,498 = 30,112.23/x
  3. Step 3: Cross multiply
    108,999.75x = 163,498 × 30,112.23
  4. Step 4: Simplify right side
    108,999.75x = 4,923,289,380.54
  5. Step 5: Solve for x
    x = 4,923,289,380.54/108,999.75
  6. Step 6: Final answer
    x = 45,167.90

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1.5x scale

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.