Home / 89,237.97-133,873.34-72,744.35

Finding the Fourth Proportional to 89,237.97, 133,873.34 and 72,744.35

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Solution

The fourth proportional to 89,237.97, 133,873.34 and 72,744.35 is: 109,129.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,237.97 : 133,873.34 = 72,744.35 : x
  2. Step 2: Convert to fraction form
    89,237.97/133,873.34 = 72,744.35/x
  3. Step 3: Cross multiply
    89,237.97x = 133,873.34 × 72,744.35
  4. Step 4: Simplify right side
    89,237.97x = 9,738,528,067.54
  5. Step 5: Solve for x
    x = 9,738,528,067.54/89,237.97
  6. Step 6: Final answer
    x = 109,129.87

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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.