Home / 148,279.20-222,198.72-77,945.28

Finding the Fourth Proportional to 148,279.20, 222,198.72 and 77,945.28

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Solution

The fourth proportional to 148,279.20, 222,198.72 and 77,945.28 is: 116,802.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,279.20 : 222,198.72 = 77,945.28 : x
  2. Step 2: Convert to fraction form
    148,279.20/222,198.72 = 77,945.28/x
  3. Step 3: Cross multiply
    148,279.20x = 222,198.72 × 77,945.28
  4. Step 4: Simplify right side
    148,279.20x = 17,319,341,446.04
  5. Step 5: Solve for x
    x = 17,319,341,446.04/148,279.20
  6. Step 6: Final answer
    x = 116,802.23

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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.