Home / 148,478.40-222,865.88-81,949.86

Finding the Fourth Proportional to 148,478.40, 222,865.88 and 81,949.86

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Solution

The fourth proportional to 148,478.40, 222,865.88 and 81,949.86 is: 123,006.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,478.40 : 222,865.88 = 81,949.86 : x
  2. Step 2: Convert to fraction form
    148,478.40/222,865.88 = 81,949.86/x
  3. Step 3: Cross multiply
    148,478.40x = 222,865.88 × 81,949.86
  4. Step 4: Simplify right side
    148,478.40x = 18,263,827,255.03
  5. Step 5: Solve for x
    x = 18,263,827,255.03/148,478.40
  6. Step 6: Final answer
    x = 123,006.63

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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.