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Finding the Fourth Proportional to 143,954.82, 198,657.36 and 80,288.82

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Solution

The fourth proportional to 143,954.82, 198,657.36 and 80,288.82 is: 110,798.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,954.82 : 198,657.36 = 80,288.82 : x
  2. Step 2: Convert to fraction form
    143,954.82/198,657.36 = 80,288.82/x
  3. Step 3: Cross multiply
    143,954.82x = 198,657.36 × 80,288.82
  4. Step 4: Simplify right side
    143,954.82x = 15,949,965,018.72
  5. Step 5: Solve for x
    x = 15,949,965,018.72/143,954.82
  6. Step 6: Final answer
    x = 110,798.41

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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.