Home / 132,003.20-197,889.60-79,356.80

Finding the Fourth Proportional to 132,003.20, 197,889.60 and 79,356.80

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Solution

The fourth proportional to 132,003.20, 197,889.60 and 79,356.80 is: 118,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,003.20 : 197,889.60 = 79,356.80 : x
  2. Step 2: Convert to fraction form
    132,003.20/197,889.60 = 79,356.80/x
  3. Step 3: Cross multiply
    132,003.20x = 197,889.60 × 79,356.80
  4. Step 4: Simplify right side
    132,003.20x = 15,703,885,409.28
  5. Step 5: Solve for x
    x = 15,703,885,409.28/132,003.20
  6. Step 6: Final answer
    x = 118,965.94

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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.