Home / 215,994.54-324,136.44-89,634.90

Finding the Fourth Proportional to 215,994.54, 324,136.44 and 89,634.90

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Solution

The fourth proportional to 215,994.54, 324,136.44 and 89,634.90 is: 134,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,994.54 : 324,136.44 = 89,634.90 : x
  2. Step 2: Convert to fraction form
    215,994.54/324,136.44 = 89,634.90/x
  3. Step 3: Cross multiply
    215,994.54x = 324,136.44 × 89,634.90
  4. Step 4: Simplify right side
    215,994.54x = 29,053,937,385.76
  5. Step 5: Solve for x
    x = 29,053,937,385.76/215,994.54
  6. Step 6: Final answer
    x = 134,512.37

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1.5x scale

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.