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Finding the Fourth Proportional to 107,469.65, 161,051.71 and 79,167.14

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Solution

The fourth proportional to 107,469.65, 161,051.71 and 79,167.14 is: 118,638.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,469.65 : 161,051.71 = 79,167.14 : x
  2. Step 2: Convert to fraction form
    107,469.65/161,051.71 = 79,167.14/x
  3. Step 3: Cross multiply
    107,469.65x = 161,051.71 × 79,167.14
  4. Step 4: Simplify right side
    107,469.65x = 12,750,002,269.63
  5. Step 5: Solve for x
    x = 12,750,002,269.63/107,469.65
  6. Step 6: Final answer
    x = 118,638.17

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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.