Home / 135,945.47-203,708.61-72,773.97

Finding the Fourth Proportional to 135,945.47, 203,708.61 and 72,773.97

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Solution

The fourth proportional to 135,945.47, 203,708.61 and 72,773.97 is: 109,048.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,945.47 : 203,708.61 = 72,773.97 : x
  2. Step 2: Convert to fraction form
    135,945.47/203,708.61 = 72,773.97/x
  3. Step 3: Cross multiply
    135,945.47x = 203,708.61 × 72,773.97
  4. Step 4: Simplify right side
    135,945.47x = 14,824,684,272.88
  5. Step 5: Solve for x
    x = 14,824,684,272.88/135,945.47
  6. Step 6: Final answer
    x = 109,048.76

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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.