Home / 132,921.31-199,381.97-39,426.25

Finding the Fourth Proportional to 132,921.31, 199,381.97 and 39,426.25

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Solution

The fourth proportional to 132,921.31, 199,381.97 and 39,426.25 is: 59,139.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,921.31 : 199,381.97 = 39,426.25 : x
  2. Step 2: Convert to fraction form
    132,921.31/199,381.97 = 39,426.25/x
  3. Step 3: Cross multiply
    132,921.31x = 199,381.97 × 39,426.25
  4. Step 4: Simplify right side
    132,921.31x = 7,860,883,394.71
  5. Step 5: Solve for x
    x = 7,860,883,394.71/132,921.31
  6. Step 6: Final answer
    x = 59,139.38

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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.