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Finding the Fourth Proportional to 143,367.60, 197,846.10 and 79,704.84

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Solution

The fourth proportional to 143,367.60, 197,846.10 and 79,704.84 is: 109,992.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,367.60 : 197,846.10 = 79,704.84 : x
  2. Step 2: Convert to fraction form
    143,367.60/197,846.10 = 79,704.84/x
  3. Step 3: Cross multiply
    143,367.60x = 197,846.10 × 79,704.84
  4. Step 4: Simplify right side
    143,367.60x = 15,769,291,745.12
  5. Step 5: Solve for x
    x = 15,769,291,745.12/143,367.60
  6. Step 6: Final answer
    x = 109,992.02

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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.