Home / 100,188.63-150,338.25-55,840.35

Finding the Fourth Proportional to 100,188.63, 150,338.25 and 55,840.35

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Solution

The fourth proportional to 100,188.63, 150,338.25 and 55,840.35 is: 83,791.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,188.63 : 150,338.25 = 55,840.35 : x
  2. Step 2: Convert to fraction form
    100,188.63/150,338.25 = 55,840.35/x
  3. Step 3: Cross multiply
    100,188.63x = 150,338.25 × 55,840.35
  4. Step 4: Simplify right side
    100,188.63x = 8,394,940,498.39
  5. Step 5: Solve for x
    x = 8,394,940,498.39/100,188.63
  6. Step 6: Final answer
    x = 83,791.35

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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.