Home / 108,143.05-162,231.44-51,972.69

Finding the Fourth Proportional to 108,143.05, 162,231.44 and 51,972.69

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Solution

The fourth proportional to 108,143.05, 162,231.44 and 51,972.69 is: 77,967.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,143.05 : 162,231.44 = 51,972.69 : x
  2. Step 2: Convert to fraction form
    108,143.05/162,231.44 = 51,972.69/x
  3. Step 3: Cross multiply
    108,143.05x = 162,231.44 × 51,972.69
  4. Step 4: Simplify right side
    108,143.05x = 8,431,604,339.37
  5. Step 5: Solve for x
    x = 8,431,604,339.37/108,143.05
  6. Step 6: Final answer
    x = 77,967.14

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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.