Home / 115,935.80-173,903.70-80,166.20

Finding the Fourth Proportional to 115,935.80, 173,903.70 and 80,166.20

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Solution

The fourth proportional to 115,935.80, 173,903.70 and 80,166.20 is: 120,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,935.80 : 173,903.70 = 80,166.20 : x
  2. Step 2: Convert to fraction form
    115,935.80/173,903.70 = 80,166.20/x
  3. Step 3: Cross multiply
    115,935.80x = 173,903.70 × 80,166.20
  4. Step 4: Simplify right side
    115,935.80x = 13,941,198,794.94
  5. Step 5: Solve for x
    x = 13,941,198,794.94/115,935.80
  6. Step 6: Final answer
    x = 120,249.30

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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.