Home / 151,728.35-209,469.03-91,313.85

Finding the Fourth Proportional to 151,728.35, 209,469.03 and 91,313.85

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Solution

The fourth proportional to 151,728.35, 209,469.03 and 91,313.85 is: 126,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,728.35 : 209,469.03 = 91,313.85 : x
  2. Step 2: Convert to fraction form
    151,728.35/209,469.03 = 91,313.85/x
  3. Step 3: Cross multiply
    151,728.35x = 209,469.03 × 91,313.85
  4. Step 4: Simplify right side
    151,728.35x = 19,127,422,081.15
  5. Step 5: Solve for x
    x = 19,127,422,081.15/151,728.35
  6. Step 6: Final answer
    x = 126,063.60

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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.