Home / 132,739.20-199,078.56-39,222.72

Finding the Fourth Proportional to 132,739.20, 199,078.56 and 39,222.72

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Solution

The fourth proportional to 132,739.20, 199,078.56 and 39,222.72 is: 58,825.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,739.20 : 199,078.56 = 39,222.72 : x
  2. Step 2: Convert to fraction form
    132,739.20/199,078.56 = 39,222.72/x
  3. Step 3: Cross multiply
    132,739.20x = 199,078.56 × 39,222.72
  4. Step 4: Simplify right side
    132,739.20x = 7,808,402,616.88
  5. Step 5: Solve for x
    x = 7,808,402,616.88/132,739.20
  6. Step 6: Final answer
    x = 58,825.14

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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.