Home / 108,147.27-161,905.23-72,163.83

Finding the Fourth Proportional to 108,147.27, 161,905.23 and 72,163.83

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Solution

The fourth proportional to 108,147.27, 161,905.23 and 72,163.83 is: 108,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,147.27 : 161,905.23 = 72,163.83 : x
  2. Step 2: Convert to fraction form
    108,147.27/161,905.23 = 72,163.83/x
  3. Step 3: Cross multiply
    108,147.27x = 161,905.23 × 72,163.83
  4. Step 4: Simplify right side
    108,147.27x = 11,683,701,493.83
  5. Step 5: Solve for x
    x = 11,683,701,493.83/108,147.27
  6. Step 6: Final answer
    x = 108,035.10

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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.