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Finding the Fourth Proportional to 148,369.60, 222,511.20 and 81,841.60

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Solution

The fourth proportional to 148,369.60, 222,511.20 and 81,841.60 is: 122,738.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,369.60 : 222,511.20 = 81,841.60 : x
  2. Step 2: Convert to fraction form
    148,369.60/222,511.20 = 81,841.60/x
  3. Step 3: Cross multiply
    148,369.60x = 222,511.20 × 81,841.60
  4. Step 4: Simplify right side
    148,369.60x = 18,210,672,625.92
  5. Step 5: Solve for x
    x = 18,210,672,625.92/148,369.60
  6. Step 6: Final answer
    x = 122,738.57

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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.