Home / 90,553.25-135,219.89-73,945.73

Finding the Fourth Proportional to 90,553.25, 135,219.89 and 73,945.73

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Solution

The fourth proportional to 90,553.25, 135,219.89 and 73,945.73 is: 110,420.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,553.25 : 135,219.89 = 73,945.73 : x
  2. Step 2: Convert to fraction form
    90,553.25/135,219.89 = 73,945.73/x
  3. Step 3: Cross multiply
    90,553.25x = 135,219.89 × 73,945.73
  4. Step 4: Simplify right side
    90,553.25x = 9,998,932,430.74
  5. Step 5: Solve for x
    x = 9,998,932,430.74/90,553.25
  6. Step 6: Final answer
    x = 110,420.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.