Home / 215,994.79-324,136.80-89,635.16

Finding the Fourth Proportional to 215,994.79, 324,136.80 and 89,635.16

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Solution

The fourth proportional to 215,994.79, 324,136.80 and 89,635.16 is: 134,512.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,994.79 : 324,136.80 = 89,635.16 : x
  2. Step 2: Convert to fraction form
    215,994.79/324,136.80 = 89,635.16/x
  3. Step 3: Cross multiply
    215,994.79x = 324,136.80 × 89,635.16
  4. Step 4: Simplify right side
    215,994.79x = 29,054,053,929.89
  5. Step 5: Solve for x
    x = 29,054,053,929.89/215,994.79
  6. Step 6: Final answer
    x = 134,512.75

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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.