Home / 132,002.20-197,888.10-79,355.80

Finding the Fourth Proportional to 132,002.20, 197,888.10 and 79,355.80

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Solution

The fourth proportional to 132,002.20, 197,888.10 and 79,355.80 is: 118,964.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,002.20 : 197,888.10 = 79,355.80 : x
  2. Step 2: Convert to fraction form
    132,002.20/197,888.10 = 79,355.80/x
  3. Step 3: Cross multiply
    132,002.20x = 197,888.10 × 79,355.80
  4. Step 4: Simplify right side
    132,002.20x = 15,703,568,485.98
  5. Step 5: Solve for x
    x = 15,703,568,485.98/132,002.20
  6. Step 6: Final answer
    x = 118,964.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.