Home / 193,899.78-291,005.22-100,432.26

Finding the Fourth Proportional to 193,899.78, 291,005.22 and 100,432.26

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Solution

The fourth proportional to 193,899.78, 291,005.22 and 100,432.26 is: 150,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,899.78 : 291,005.22 = 100,432.26 : x
  2. Step 2: Convert to fraction form
    193,899.78/291,005.22 = 100,432.26/x
  3. Step 3: Cross multiply
    193,899.78x = 291,005.22 × 100,432.26
  4. Step 4: Simplify right side
    193,899.78x = 29,226,311,916.40
  5. Step 5: Solve for x
    x = 29,226,311,916.40/193,899.78
  6. Step 6: Final answer
    x = 150,728.96

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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.