Home / 137,102.74-205,571.08-89,660.57

Finding the Fourth Proportional to 137,102.74, 205,571.08 and 89,660.57

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Solution

The fourth proportional to 137,102.74, 205,571.08 and 89,660.57 is: 134,436.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,102.74 : 205,571.08 = 89,660.57 : x
  2. Step 2: Convert to fraction form
    137,102.74/205,571.08 = 89,660.57/x
  3. Step 3: Cross multiply
    137,102.74x = 205,571.08 × 89,660.57
  4. Step 4: Simplify right side
    137,102.74x = 18,431,619,292.54
  5. Step 5: Solve for x
    x = 18,431,619,292.54/137,102.74
  6. Step 6: Final answer
    x = 134,436.55

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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.