Home / 151,922.73-209,610.70-87,388.59

Finding the Fourth Proportional to 151,922.73, 209,610.70 and 87,388.59

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Solution

The fourth proportional to 151,922.73, 209,610.70 and 87,388.59 is: 120,571.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,922.73 : 209,610.70 = 87,388.59 : x
  2. Step 2: Convert to fraction form
    151,922.73/209,610.70 = 87,388.59/x
  3. Step 3: Cross multiply
    151,922.73x = 209,610.70 × 87,388.59
  4. Step 4: Simplify right side
    151,922.73x = 18,317,583,521.91
  5. Step 5: Solve for x
    x = 18,317,583,521.91/151,922.73
  6. Step 6: Final answer
    x = 120,571.71

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1.5x scale

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.