Home / 215,993.79-324,135.30-89,634.16

Finding the Fourth Proportional to 215,993.79, 324,135.30 and 89,634.16

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Solution

The fourth proportional to 215,993.79, 324,135.30 and 89,634.16 is: 134,511.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,993.79 : 324,135.30 = 89,634.16 : x
  2. Step 2: Convert to fraction form
    215,993.79/324,135.30 = 89,634.16/x
  3. Step 3: Cross multiply
    215,993.79x = 324,135.30 × 89,634.16
  4. Step 4: Simplify right side
    215,993.79x = 29,053,594,531.51
  5. Step 5: Solve for x
    x = 29,053,594,531.51/215,993.79
  6. Step 6: Final answer
    x = 134,511.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.