Home / 122,630.40-183,945.60-115,372.80

Finding the Fourth Proportional to 122,630.40, 183,945.60 and 115,372.80

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Solution

The fourth proportional to 122,630.40, 183,945.60 and 115,372.80 is: 173,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,630.40 : 183,945.60 = 115,372.80 : x
  2. Step 2: Convert to fraction form
    122,630.40/183,945.60 = 115,372.80/x
  3. Step 3: Cross multiply
    122,630.40x = 183,945.60 × 115,372.80
  4. Step 4: Simplify right side
    122,630.40x = 21,222,318,919.68
  5. Step 5: Solve for x
    x = 21,222,318,919.68/122,630.40
  6. Step 6: Final answer
    x = 173,059.20

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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.