Home / 132,919.90-199,390.64-39,425.38

Finding the Fourth Proportional to 132,919.90, 199,390.64 and 39,425.38

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Solution

The fourth proportional to 132,919.90, 199,390.64 and 39,425.38 is: 59,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,919.90 : 199,390.64 = 39,425.38 : x
  2. Step 2: Convert to fraction form
    132,919.90/199,390.64 = 39,425.38/x
  3. Step 3: Cross multiply
    132,919.90x = 199,390.64 × 39,425.38
  4. Step 4: Simplify right side
    132,919.90x = 7,861,051,750.44
  5. Step 5: Solve for x
    x = 7,861,051,750.44/132,919.90
  6. Step 6: Final answer
    x = 59,141.27

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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.