Home / 144,719.92-199,721.46-81,066.88

Finding the Fourth Proportional to 144,719.92, 199,721.46 and 81,066.88

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Solution

The fourth proportional to 144,719.92, 199,721.46 and 81,066.88 is: 111,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,719.92 : 199,721.46 = 81,066.88 : x
  2. Step 2: Convert to fraction form
    144,719.92/199,721.46 = 81,066.88/x
  3. Step 3: Cross multiply
    144,719.92x = 199,721.46 × 81,066.88
  4. Step 4: Simplify right side
    144,719.92x = 16,190,795,631.24
  5. Step 5: Solve for x
    x = 16,190,795,631.24/144,719.92
  6. Step 6: Final answer
    x = 111,876.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.