Home / 102,553.45-153,829.47-55,190.82

Finding the Fourth Proportional to 102,553.45, 153,829.47 and 55,190.82

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Solution

The fourth proportional to 102,553.45, 153,829.47 and 55,190.82 is: 82,785.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,553.45 : 153,829.47 = 55,190.82 : x
  2. Step 2: Convert to fraction form
    102,553.45/153,829.47 = 55,190.82/x
  3. Step 3: Cross multiply
    102,553.45x = 153,829.47 × 55,190.82
  4. Step 4: Simplify right side
    102,553.45x = 8,489,974,589.47
  5. Step 5: Solve for x
    x = 8,489,974,589.47/102,553.45
  6. Step 6: Final answer
    x = 82,785.85

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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.