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Finding the Fourth Proportional to 135,373, 203,130.54 and 55,470.28

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Solution

The fourth proportional to 135,373, 203,130.54 and 55,470.28 is: 83,234.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,373 : 203,130.54 = 55,470.28 : x
  2. Step 2: Convert to fraction form
    135,373/203,130.54 = 55,470.28/x
  3. Step 3: Cross multiply
    135,373x = 203,130.54 × 55,470.28
  4. Step 4: Simplify right side
    135,373x = 11,267,707,930.35
  5. Step 5: Solve for x
    x = 11,267,707,930.35/135,373
  6. Step 6: Final answer
    x = 83,234.53

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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.