Home / 151,112.00-208,542.86-87,470.30

Finding the Fourth Proportional to 151,112.00, 208,542.86 and 87,470.30

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Solution

The fourth proportional to 151,112.00, 208,542.86 and 87,470.30 is: 120,713.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,112.00 : 208,542.86 = 87,470.30 : x
  2. Step 2: Convert to fraction form
    151,112.00/208,542.86 = 87,470.30/x
  3. Step 3: Cross multiply
    151,112.00x = 208,542.86 × 87,470.30
  4. Step 4: Simplify right side
    151,112.00x = 18,241,305,046.99
  5. Step 5: Solve for x
    x = 18,241,305,046.99/151,112.00
  6. Step 6: Final answer
    x = 120,713.81

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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.