Home / 115,736.20-173,661.90-45,617.80

Finding the Fourth Proportional to 115,736.20, 173,661.90 and 45,617.80

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Solution

The fourth proportional to 115,736.20, 173,661.90 and 45,617.80 is: 68,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,736.20 : 173,661.90 = 45,617.80 : x
  2. Step 2: Convert to fraction form
    115,736.20/173,661.90 = 45,617.80/x
  3. Step 3: Cross multiply
    115,736.20x = 173,661.90 × 45,617.80
  4. Step 4: Simplify right side
    115,736.20x = 7,922,073,821.82
  5. Step 5: Solve for x
    x = 7,922,073,821.82/115,736.20
  6. Step 6: Final answer
    x = 68,449.40

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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.