Home / 118,822.68-178,308-107,749.44

Finding the Fourth Proportional to 118,822.68, 178,308 and 107,749.44

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Solution

The fourth proportional to 118,822.68, 178,308 and 107,749.44 is: 161,691.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,822.68 : 178,308 = 107,749.44 : x
  2. Step 2: Convert to fraction form
    118,822.68/178,308 = 107,749.44/x
  3. Step 3: Cross multiply
    118,822.68x = 178,308 × 107,749.44
  4. Step 4: Simplify right side
    118,822.68x = 19,212,587,147.52
  5. Step 5: Solve for x
    x = 19,212,587,147.52/118,822.68
  6. Step 6: Final answer
    x = 161,691.25

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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.