Home / 108,287.89-162,322.75-45,142.94

Finding the Fourth Proportional to 108,287.89, 162,322.75 and 45,142.94

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Solution

The fourth proportional to 108,287.89, 162,322.75 and 45,142.94 is: 67,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,287.89 : 162,322.75 = 45,142.94 : x
  2. Step 2: Convert to fraction form
    108,287.89/162,322.75 = 45,142.94/x
  3. Step 3: Cross multiply
    108,287.89x = 162,322.75 × 45,142.94
  4. Step 4: Simplify right side
    108,287.89x = 7,327,726,163.89
  5. Step 5: Solve for x
    x = 7,327,726,163.89/108,287.89
  6. Step 6: Final answer
    x = 67,668.93

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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.