Home / 144,490.05-199,388.25-80,815.55

Finding the Fourth Proportional to 144,490.05, 199,388.25 and 80,815.55

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Solution

The fourth proportional to 144,490.05, 199,388.25 and 80,815.55 is: 111,520.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,490.05 : 199,388.25 = 80,815.55 : x
  2. Step 2: Convert to fraction form
    144,490.05/199,388.25 = 80,815.55/x
  3. Step 3: Cross multiply
    144,490.05x = 199,388.25 × 80,815.55
  4. Step 4: Simplify right side
    144,490.05x = 16,113,670,090.35
  5. Step 5: Solve for x
    x = 16,113,670,090.35/144,490.05
  6. Step 6: Final answer
    x = 111,520.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.