Home / 118,757.56-178,141.83-66,127.36

Finding the Fourth Proportional to 118,757.56, 178,141.83 and 66,127.36

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Solution

The fourth proportional to 118,757.56, 178,141.83 and 66,127.36 is: 99,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,757.56 : 178,141.83 = 66,127.36 : x
  2. Step 2: Convert to fraction form
    118,757.56/178,141.83 = 66,127.36/x
  3. Step 3: Cross multiply
    118,757.56x = 178,141.83 × 66,127.36
  4. Step 4: Simplify right side
    118,757.56x = 11,780,048,923.47
  5. Step 5: Solve for x
    x = 11,780,048,923.47/118,757.56
  6. Step 6: Final answer
    x = 99,194.10

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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.