Home / 147,939.20-222,081.60-84,809.60

Finding the Fourth Proportional to 147,939.20, 222,081.60 and 84,809.60

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Solution

The fourth proportional to 147,939.20, 222,081.60 and 84,809.60 is: 127,313.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,939.20 : 222,081.60 = 84,809.60 : x
  2. Step 2: Convert to fraction form
    147,939.20/222,081.60 = 84,809.60/x
  3. Step 3: Cross multiply
    147,939.20x = 222,081.60 × 84,809.60
  4. Step 4: Simplify right side
    147,939.20x = 18,834,651,663.36
  5. Step 5: Solve for x
    x = 18,834,651,663.36/147,939.20
  6. Step 6: Final answer
    x = 127,313.46

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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.