Home / 136,996.68-205,611.66-53,949

Finding the Fourth Proportional to 136,996.68, 205,611.66 and 53,949

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Solution

The fourth proportional to 136,996.68, 205,611.66 and 53,949 is: 80,969.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,996.68 : 205,611.66 = 53,949 : x
  2. Step 2: Convert to fraction form
    136,996.68/205,611.66 = 53,949/x
  3. Step 3: Cross multiply
    136,996.68x = 205,611.66 × 53,949
  4. Step 4: Simplify right side
    136,996.68x = 11,092,543,445.34
  5. Step 5: Solve for x
    x = 11,092,543,445.34/136,996.68
  6. Step 6: Final answer
    x = 80,969.43

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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.