Home / 108,968.09-150,375.39-61,221.02

Finding the Fourth Proportional to 108,968.09, 150,375.39 and 61,221.02

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Solution

The fourth proportional to 108,968.09, 150,375.39 and 61,221.02 is: 84,484.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,968.09 : 150,375.39 = 61,221.02 : x
  2. Step 2: Convert to fraction form
    108,968.09/150,375.39 = 61,221.02/x
  3. Step 3: Cross multiply
    108,968.09x = 150,375.39 × 61,221.02
  4. Step 4: Simplify right side
    108,968.09x = 9,206,133,777.24
  5. Step 5: Solve for x
    x = 9,206,133,777.24/108,968.09
  6. Step 6: Final answer
    x = 84,484.68

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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.