Home / 118,723.64-178,090.93-66,093.49

Finding the Fourth Proportional to 118,723.64, 178,090.93 and 66,093.49

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Solution

The fourth proportional to 118,723.64, 178,090.93 and 66,093.49 is: 99,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,723.64 : 178,090.93 = 66,093.49 : x
  2. Step 2: Convert to fraction form
    118,723.64/178,090.93 = 66,093.49/x
  3. Step 3: Cross multiply
    118,723.64x = 178,090.93 × 66,093.49
  4. Step 4: Simplify right side
    118,723.64x = 11,770,651,101.05
  5. Step 5: Solve for x
    x = 11,770,651,101.05/118,723.64
  6. Step 6: Final answer
    x = 99,143.28

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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.