Home / 143,327.76-197,793.06-79,671.48

Finding the Fourth Proportional to 143,327.76, 197,793.06 and 79,671.48

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Solution

The fourth proportional to 143,327.76, 197,793.06 and 79,671.48 is: 109,947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,327.76 : 197,793.06 = 79,671.48 : x
  2. Step 2: Convert to fraction form
    143,327.76/197,793.06 = 79,671.48/x
  3. Step 3: Cross multiply
    143,327.76x = 197,793.06 × 79,671.48
  4. Step 4: Simplify right side
    143,327.76x = 15,758,465,823.93
  5. Step 5: Solve for x
    x = 15,758,465,823.93/143,327.76
  6. Step 6: Final answer
    x = 109,947.06

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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.