Home / 132,886.87-183,428.31-79,188.73

Finding the Fourth Proportional to 132,886.87, 183,428.31 and 79,188.73

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Solution

The fourth proportional to 132,886.87, 183,428.31 and 79,188.73 is: 109,306.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,886.87 : 183,428.31 = 79,188.73 : x
  2. Step 2: Convert to fraction form
    132,886.87/183,428.31 = 79,188.73/x
  3. Step 3: Cross multiply
    132,886.87x = 183,428.31 × 79,188.73
  4. Step 4: Simplify right side
    132,886.87x = 14,525,454,753.33
  5. Step 5: Solve for x
    x = 14,525,454,753.33/132,886.87
  6. Step 6: Final answer
    x = 109,306.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.