Home / 159,617.14-220,273.08-87,999.70

Finding the Fourth Proportional to 159,617.14, 220,273.08 and 87,999.70

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Solution

The fourth proportional to 159,617.14, 220,273.08 and 87,999.70 is: 121,440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,617.14 : 220,273.08 = 87,999.70 : x
  2. Step 2: Convert to fraction form
    159,617.14/220,273.08 = 87,999.70/x
  3. Step 3: Cross multiply
    159,617.14x = 220,273.08 × 87,999.70
  4. Step 4: Simplify right side
    159,617.14x = 19,383,964,958.08
  5. Step 5: Solve for x
    x = 19,383,964,958.08/159,617.14
  6. Step 6: Final answer
    x = 121,440.37

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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.