Home / 143,591.04-198,157.52-79,067.84

Finding the Fourth Proportional to 143,591.04, 198,157.52 and 79,067.84

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Solution

The fourth proportional to 143,591.04, 198,157.52 and 79,067.84 is: 109,114.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,591.04 : 198,157.52 = 79,067.84 : x
  2. Step 2: Convert to fraction form
    143,591.04/198,157.52 = 79,067.84/x
  3. Step 3: Cross multiply
    143,591.04x = 198,157.52 × 79,067.84
  4. Step 4: Simplify right side
    143,591.04x = 15,667,887,086.16
  5. Step 5: Solve for x
    x = 15,667,887,086.16/143,591.04
  6. Step 6: Final answer
    x = 109,114.66

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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.