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Finding the Fourth Proportional to 144,809.04, 199,863.72 and 84,388.56

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Solution

The fourth proportional to 144,809.04, 199,863.72 and 84,388.56 is: 116,472.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,809.04 : 199,863.72 = 84,388.56 : x
  2. Step 2: Convert to fraction form
    144,809.04/199,863.72 = 84,388.56/x
  3. Step 3: Cross multiply
    144,809.04x = 199,863.72 × 84,388.56
  4. Step 4: Simplify right side
    144,809.04x = 16,866,211,527.04
  5. Step 5: Solve for x
    x = 16,866,211,527.04/144,809.04
  6. Step 6: Final answer
    x = 116,472.09

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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.