Home / 118,942.50-164,125.56-65,213.39

Finding the Fourth Proportional to 118,942.50, 164,125.56 and 65,213.39

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Solution

The fourth proportional to 118,942.50, 164,125.56 and 65,213.39 is: 89,986.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,942.50 : 164,125.56 = 65,213.39 : x
  2. Step 2: Convert to fraction form
    118,942.50/164,125.56 = 65,213.39/x
  3. Step 3: Cross multiply
    118,942.50x = 164,125.56 × 65,213.39
  4. Step 4: Simplify right side
    118,942.50x = 10,703,183,332.62
  5. Step 5: Solve for x
    x = 10,703,183,332.62/118,942.50
  6. Step 6: Final answer
    x = 89,986.20

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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.