Home / 168,099.07-231,973.68-91,618.87

Finding the Fourth Proportional to 168,099.07, 231,973.68 and 91,618.87

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Solution

The fourth proportional to 168,099.07, 231,973.68 and 91,618.87 is: 126,432.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,099.07 : 231,973.68 = 91,618.87 : x
  2. Step 2: Convert to fraction form
    168,099.07/231,973.68 = 91,618.87/x
  3. Step 3: Cross multiply
    168,099.07x = 231,973.68 × 91,618.87
  4. Step 4: Simplify right side
    168,099.07x = 21,253,166,431.34
  5. Step 5: Solve for x
    x = 21,253,166,431.34/168,099.07
  6. Step 6: Final answer
    x = 126,432.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.