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Finding the Fourth Proportional to 136,099.96, 187,817.77 and 75,668.69

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Solution

The fourth proportional to 136,099.96, 187,817.77 and 75,668.69 is: 104,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,099.96 : 187,817.77 = 75,668.69 : x
  2. Step 2: Convert to fraction form
    136,099.96/187,817.77 = 75,668.69/x
  3. Step 3: Cross multiply
    136,099.96x = 187,817.77 × 75,668.69
  4. Step 4: Simplify right side
    136,099.96x = 14,211,924,614.62
  5. Step 5: Solve for x
    x = 14,211,924,614.62/136,099.96
  6. Step 6: Final answer
    x = 104,422.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.