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Finding the Fourth Proportional to 159,185.33, 219,674.52 and 87,563.78

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Solution

The fourth proportional to 159,185.33, 219,674.52 and 87,563.78 is: 120,837.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,185.33 : 219,674.52 = 87,563.78 : x
  2. Step 2: Convert to fraction form
    159,185.33/219,674.52 = 87,563.78/x
  3. Step 3: Cross multiply
    159,185.33x = 219,674.52 × 87,563.78
  4. Step 4: Simplify right side
    159,185.33x = 19,235,530,242.51
  5. Step 5: Solve for x
    x = 19,235,530,242.51/159,185.33
  6. Step 6: Final answer
    x = 120,837.33

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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.