Home / 118,872.12-177,245.43-115,606.20

Finding the Fourth Proportional to 118,872.12, 177,245.43 and 115,606.20

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Solution

The fourth proportional to 118,872.12, 177,245.43 and 115,606.20 is: 172,375.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,872.12 : 177,245.43 = 115,606.20 : x
  2. Step 2: Convert to fraction form
    118,872.12/177,245.43 = 115,606.20/x
  3. Step 3: Cross multiply
    118,872.12x = 177,245.43 × 115,606.20
  4. Step 4: Simplify right side
    118,872.12x = 20,490,670,629.67
  5. Step 5: Solve for x
    x = 20,490,670,629.67/118,872.12
  6. Step 6: Final answer
    x = 172,375.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.