Home / 151,910.92-209,549.46-91,439.56

Finding the Fourth Proportional to 151,910.92, 209,549.46 and 91,439.56

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Solution

The fourth proportional to 151,910.92, 209,549.46 and 91,439.56 is: 126,133.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,910.92 : 209,549.46 = 91,439.56 : x
  2. Step 2: Convert to fraction form
    151,910.92/209,549.46 = 91,439.56/x
  3. Step 3: Cross multiply
    151,910.92x = 209,549.46 × 91,439.56
  4. Step 4: Simplify right side
    151,910.92x = 19,161,110,420.64
  5. Step 5: Solve for x
    x = 19,161,110,420.64/151,910.92
  6. Step 6: Final answer
    x = 126,133.86

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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.