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Finding the Fourth Proportional to 100,912.86, 151,367.64 and 34,399.32

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Solution

The fourth proportional to 100,912.86, 151,367.64 and 34,399.32 is: 51,598.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,912.86 : 151,367.64 = 34,399.32 : x
  2. Step 2: Convert to fraction form
    100,912.86/151,367.64 = 34,399.32/x
  3. Step 3: Cross multiply
    100,912.86x = 151,367.64 × 34,399.32
  4. Step 4: Simplify right side
    100,912.86x = 5,206,943,886.00
  5. Step 5: Solve for x
    x = 5,206,943,886.00/100,912.86
  6. Step 6: Final answer
    x = 51,598.42

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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.