Home / 117,961.40-177,287.70-115,887.80

Finding the Fourth Proportional to 117,961.40, 177,287.70 and 115,887.80

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Solution

The fourth proportional to 117,961.40, 177,287.70 and 115,887.80 is: 174,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,961.40 : 177,287.70 = 115,887.80 : x
  2. Step 2: Convert to fraction form
    117,961.40/177,287.70 = 115,887.80/x
  3. Step 3: Cross multiply
    117,961.40x = 177,287.70 × 115,887.80
  4. Step 4: Simplify right side
    117,961.40x = 20,545,481,520.06
  5. Step 5: Solve for x
    x = 20,545,481,520.06/117,961.40
  6. Step 6: Final answer
    x = 174,171.22

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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.