Home / 122,338.20-183,288.60-100,030.80

Finding the Fourth Proportional to 122,338.20, 183,288.60 and 100,030.80

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Solution

The fourth proportional to 122,338.20, 183,288.60 and 100,030.80 is: 149,867.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,338.20 : 183,288.60 = 100,030.80 : x
  2. Step 2: Convert to fraction form
    122,338.20/183,288.60 = 100,030.80/x
  3. Step 3: Cross multiply
    122,338.20x = 183,288.60 × 100,030.80
  4. Step 4: Simplify right side
    122,338.20x = 18,334,505,288.88
  5. Step 5: Solve for x
    x = 18,334,505,288.88/122,338.20
  6. Step 6: Final answer
    x = 149,867.38

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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.