Home / 115,936.80-173,905.20-80,167.20

Finding the Fourth Proportional to 115,936.80, 173,905.20 and 80,167.20

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Solution

The fourth proportional to 115,936.80, 173,905.20 and 80,167.20 is: 120,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,936.80 : 173,905.20 = 80,167.20 : x
  2. Step 2: Convert to fraction form
    115,936.80/173,905.20 = 80,167.20/x
  3. Step 3: Cross multiply
    115,936.80x = 173,905.20 × 80,167.20
  4. Step 4: Simplify right side
    115,936.80x = 13,941,492,949.44
  5. Step 5: Solve for x
    x = 13,941,492,949.44/115,936.80
  6. Step 6: Final answer
    x = 120,250.80

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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.