Home / 142,793.96-197,050.66-79,137.68

Finding the Fourth Proportional to 142,793.96, 197,050.66 and 79,137.68

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Solution

The fourth proportional to 142,793.96, 197,050.66 and 79,137.68 is: 109,207.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,793.96 : 197,050.66 = 79,137.68 : x
  2. Step 2: Convert to fraction form
    142,793.96/197,050.66 = 79,137.68/x
  3. Step 3: Cross multiply
    142,793.96x = 197,050.66 × 79,137.68
  4. Step 4: Simplify right side
    142,793.96x = 15,594,132,074.87
  5. Step 5: Solve for x
    x = 15,594,132,074.87/142,793.96
  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.