Home / 118,722.64-178,089.43-66,092.49

Finding the Fourth Proportional to 118,722.64, 178,089.43 and 66,092.49

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Solution

The fourth proportional to 118,722.64, 178,089.43 and 66,092.49 is: 99,141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,722.64 : 178,089.43 = 66,092.49 : x
  2. Step 2: Convert to fraction form
    118,722.64/178,089.43 = 66,092.49/x
  3. Step 3: Cross multiply
    118,722.64x = 178,089.43 × 66,092.49
  4. Step 4: Simplify right side
    118,722.64x = 11,770,373,871.38
  5. Step 5: Solve for x
    x = 11,770,373,871.38/118,722.64
  6. Step 6: Final answer
    x = 99,141.78

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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.