Home / 109,273.20-163,974.60-71,940.30

Finding the Fourth Proportional to 109,273.20, 163,974.60 and 71,940.30

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Solution

The fourth proportional to 109,273.20, 163,974.60 and 71,940.30 is: 107,953.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,273.20 : 163,974.60 = 71,940.30 : x
  2. Step 2: Convert to fraction form
    109,273.20/163,974.60 = 71,940.30/x
  3. Step 3: Cross multiply
    109,273.20x = 163,974.60 × 71,940.30
  4. Step 4: Simplify right side
    109,273.20x = 11,796,381,916.38
  5. Step 5: Solve for x
    x = 11,796,381,916.38/109,273.20
  6. Step 6: Final answer
    x = 107,953.11

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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.