Home / 132,920.31-199,380.47-39,425.25

Finding the Fourth Proportional to 132,920.31, 199,380.47 and 39,425.25

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Solution

The fourth proportional to 132,920.31, 199,380.47 and 39,425.25 is: 59,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,920.31 : 199,380.47 = 39,425.25 : x
  2. Step 2: Convert to fraction form
    132,920.31/199,380.47 = 39,425.25/x
  3. Step 3: Cross multiply
    132,920.31x = 199,380.47 × 39,425.25
  4. Step 4: Simplify right side
    132,920.31x = 7,860,624,677.74
  5. Step 5: Solve for x
    x = 7,860,624,677.74/132,920.31
  6. Step 6: Final answer
    x = 59,137.88

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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.