Home / 194,900.78-292,370.25-81,025.04

Finding the Fourth Proportional to 194,900.78, 292,370.25 and 81,025.04

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Solution

The fourth proportional to 194,900.78, 292,370.25 and 81,025.04 is: 121,545.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,900.78 : 292,370.25 = 81,025.04 : x
  2. Step 2: Convert to fraction form
    194,900.78/292,370.25 = 81,025.04/x
  3. Step 3: Cross multiply
    194,900.78x = 292,370.25 × 81,025.04
  4. Step 4: Simplify right side
    194,900.78x = 23,689,311,201.06
  5. Step 5: Solve for x
    x = 23,689,311,201.06/194,900.78
  6. Step 6: Final answer
    x = 121,545.49

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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.