Home / 161,918.88-242,889.84-51,108

Finding the Fourth Proportional to 161,918.88, 242,889.84 and 51,108

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Solution

The fourth proportional to 161,918.88, 242,889.84 and 51,108 is: 76,665.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,918.88 : 242,889.84 = 51,108 : x
  2. Step 2: Convert to fraction form
    161,918.88/242,889.84 = 51,108/x
  3. Step 3: Cross multiply
    161,918.88x = 242,889.84 × 51,108
  4. Step 4: Simplify right side
    161,918.88x = 12,413,613,942.72
  5. Step 5: Solve for x
    x = 12,413,613,942.72/161,918.88
  6. Step 6: Final answer
    x = 76,665.64

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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.