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Finding the Fourth Proportional to 149,809.60, 224,811.60 and 86,629.60

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Solution

The fourth proportional to 149,809.60, 224,811.60 and 86,629.60 is: 130,000.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,809.60 : 224,811.60 = 86,629.60 : x
  2. Step 2: Convert to fraction form
    149,809.60/224,811.60 = 86,629.60/x
  3. Step 3: Cross multiply
    149,809.60x = 224,811.60 × 86,629.60
  4. Step 4: Simplify right side
    149,809.60x = 19,475,338,983.36
  5. Step 5: Solve for x
    x = 19,475,338,983.36/149,809.60
  6. Step 6: Final answer
    x = 130,000.61

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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.