Home / 123,611.28-170,581.92-67,021.44

Finding the Fourth Proportional to 123,611.28, 170,581.92 and 67,021.44

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Solution

The fourth proportional to 123,611.28, 170,581.92 and 67,021.44 is: 92,488.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,611.28 : 170,581.92 = 67,021.44 : x
  2. Step 2: Convert to fraction form
    123,611.28/170,581.92 = 67,021.44/x
  3. Step 3: Cross multiply
    123,611.28x = 170,581.92 × 67,021.44
  4. Step 4: Simplify right side
    123,611.28x = 11,432,645,916.36
  5. Step 5: Solve for x
    x = 11,432,645,916.36/123,611.28
  6. Step 6: Final answer
    x = 92,488.69

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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.