Home / 102,553.20-153,743.40-53,305.20

Finding the Fourth Proportional to 102,553.20, 153,743.40 and 53,305.20

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Solution

The fourth proportional to 102,553.20, 153,743.40 and 53,305.20 is: 79,912.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,553.20 : 153,743.40 = 53,305.20 : x
  2. Step 2: Convert to fraction form
    102,553.20/153,743.40 = 53,305.20/x
  3. Step 3: Cross multiply
    102,553.20x = 153,743.40 × 53,305.20
  4. Step 4: Simplify right side
    102,553.20x = 8,195,322,685.68
  5. Step 5: Solve for x
    x = 8,195,322,685.68/102,553.20
  6. Step 6: Final answer
    x = 79,912.89

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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.