Home / 192,855.80-289,302.73-66,479.41

Finding the Fourth Proportional to 192,855.80, 289,302.73 and 66,479.41

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Solution

The fourth proportional to 192,855.80, 289,302.73 and 66,479.41 is: 99,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,855.80 : 289,302.73 = 66,479.41 : x
  2. Step 2: Convert to fraction form
    192,855.80/289,302.73 = 66,479.41/x
  3. Step 3: Cross multiply
    192,855.80x = 289,302.73 × 66,479.41
  4. Step 4: Simplify right side
    192,855.80x = 19,232,674,997.22
  5. Step 5: Solve for x
    x = 19,232,674,997.22/192,855.80
  6. Step 6: Final answer
    x = 99,725.67

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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.