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Finding the Fourth Proportional to 125,025.78, 187,375.56 and 109,193.22

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Solution

The fourth proportional to 125,025.78, 187,375.56 and 109,193.22 is: 163,647.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,025.78 : 187,375.56 = 109,193.22 : x
  2. Step 2: Convert to fraction form
    125,025.78/187,375.56 = 109,193.22/x
  3. Step 3: Cross multiply
    125,025.78x = 187,375.56 × 109,193.22
  4. Step 4: Simplify right side
    125,025.78x = 20,460,140,745.70
  5. Step 5: Solve for x
    x = 20,460,140,745.70/125,025.78
  6. Step 6: Final answer
    x = 163,647.38

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1.5x scale

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.