Home / 100,960.83-151,263.45-89,965.35

Finding the Fourth Proportional to 100,960.83, 151,263.45 and 89,965.35

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Solution

The fourth proportional to 100,960.83, 151,263.45 and 89,965.35 is: 134,789.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,960.83 : 151,263.45 = 89,965.35 : x
  2. Step 2: Convert to fraction form
    100,960.83/151,263.45 = 89,965.35/x
  3. Step 3: Cross multiply
    100,960.83x = 151,263.45 × 89,965.35
  4. Step 4: Simplify right side
    100,960.83x = 13,608,469,221.46
  5. Step 5: Solve for x
    x = 13,608,469,221.46/100,960.83
  6. Step 6: Final answer
    x = 134,789.59

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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.