Home / 208,996.57-288,534.82-137,584.18

Finding the Fourth Proportional to 208,996.57, 288,534.82 and 137,584.18

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Solution

The fourth proportional to 208,996.57, 288,534.82 and 137,584.18 is: 189,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,996.57 : 288,534.82 = 137,584.18 : x
  2. Step 2: Convert to fraction form
    208,996.57/288,534.82 = 137,584.18/x
  3. Step 3: Cross multiply
    208,996.57x = 288,534.82 × 137,584.18
  4. Step 4: Simplify right side
    208,996.57x = 39,697,825,923.23
  5. Step 5: Solve for x
    x = 39,697,825,923.23/208,996.57
  6. Step 6: Final answer
    x = 189,944.87

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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.