Home / 118,971.43-178,219.19-71,560.33

Finding the Fourth Proportional to 118,971.43, 178,219.19 and 71,560.33

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Solution

The fourth proportional to 118,971.43, 178,219.19 and 71,560.33 is: 107,197.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,971.43 : 178,219.19 = 71,560.33 : x
  2. Step 2: Convert to fraction form
    118,971.43/178,219.19 = 71,560.33/x
  3. Step 3: Cross multiply
    118,971.43x = 178,219.19 × 71,560.33
  4. Step 4: Simplify right side
    118,971.43x = 12,753,423,782.09
  5. Step 5: Solve for x
    x = 12,753,423,782.09/118,971.43
  6. Step 6: Final answer
    x = 107,197.37

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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.