Home / 132,055.20-197,791.20-53,128.80

Finding the Fourth Proportional to 132,055.20, 197,791.20 and 53,128.80

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Solution

The fourth proportional to 132,055.20, 197,791.20 and 53,128.80 is: 79,575.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,055.20 : 197,791.20 = 53,128.80 : x
  2. Step 2: Convert to fraction form
    132,055.20/197,791.20 = 53,128.80/x
  3. Step 3: Cross multiply
    132,055.20x = 197,791.20 × 53,128.80
  4. Step 4: Simplify right side
    132,055.20x = 10,508,409,106.56
  5. Step 5: Solve for x
    x = 10,508,409,106.56/132,055.20
  6. Step 6: Final answer
    x = 79,575.88

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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.