Home / 151,529.73-209,135.67-91,161.39

Finding the Fourth Proportional to 151,529.73, 209,135.67 and 91,161.39

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Solution

The fourth proportional to 151,529.73, 209,135.67 and 91,161.39 is: 125,817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,529.73 : 209,135.67 = 91,161.39 : x
  2. Step 2: Convert to fraction form
    151,529.73/209,135.67 = 91,161.39/x
  3. Step 3: Cross multiply
    151,529.73x = 209,135.67 × 91,161.39
  4. Step 4: Simplify right side
    151,529.73x = 19,065,098,375.78
  5. Step 5: Solve for x
    x = 19,065,098,375.78/151,529.73
  6. Step 6: Final answer
    x = 125,817.54

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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.