Home / 100,935.90-151,236.99-71,302.86

Finding the Fourth Proportional to 100,935.90, 151,236.99 and 71,302.86

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Solution

The fourth proportional to 100,935.90, 151,236.99 and 71,302.86 is: 106,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,935.90 : 151,236.99 = 71,302.86 : x
  2. Step 2: Convert to fraction form
    100,935.90/151,236.99 = 71,302.86/x
  3. Step 3: Cross multiply
    100,935.90x = 151,236.99 × 71,302.86
  4. Step 4: Simplify right side
    100,935.90x = 10,783,629,924.79
  5. Step 5: Solve for x
    x = 10,783,629,924.79/100,935.90
  6. Step 6: Final answer
    x = 106,836.42

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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.