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Finding the Fourth Proportional to 143,599.58, 198,162.07 and 79,936.01

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Solution

The fourth proportional to 143,599.58, 198,162.07 and 79,936.01 is: 110,308.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,599.58 : 198,162.07 = 79,936.01 : x
  2. Step 2: Convert to fraction form
    143,599.58/198,162.07 = 79,936.01/x
  3. Step 3: Cross multiply
    143,599.58x = 198,162.07 × 79,936.01
  4. Step 4: Simplify right side
    143,599.58x = 15,840,284,018.49
  5. Step 5: Solve for x
    x = 15,840,284,018.49/143,599.58
  6. Step 6: Final answer
    x = 110,308.71

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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.