Home / 142,793.94-197,050.68-79,137.66

Finding the Fourth Proportional to 142,793.94, 197,050.68 and 79,137.66

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Solution

The fourth proportional to 142,793.94, 197,050.68 and 79,137.66 is: 109,207.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,793.94 : 197,050.68 = 79,137.66 : x
  2. Step 2: Convert to fraction form
    142,793.94/197,050.68 = 79,137.66/x
  3. Step 3: Cross multiply
    142,793.94x = 197,050.68 × 79,137.66
  4. Step 4: Simplify right side
    142,793.94x = 15,594,129,716.61
  5. Step 5: Solve for x
    x = 15,594,129,716.61/142,793.94
  6. Step 6: Final answer
    x = 109,207.22

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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.