Home / 129,556.65-193,896.03-79,668.34

Finding the Fourth Proportional to 129,556.65, 193,896.03 and 79,668.34

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Solution

The fourth proportional to 129,556.65, 193,896.03 and 79,668.34 is: 119,232.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,556.65 : 193,896.03 = 79,668.34 : x
  2. Step 2: Convert to fraction form
    129,556.65/193,896.03 = 79,668.34/x
  3. Step 3: Cross multiply
    129,556.65x = 193,896.03 × 79,668.34
  4. Step 4: Simplify right side
    129,556.65x = 15,447,374,842.69
  5. Step 5: Solve for x
    x = 15,447,374,842.69/129,556.65
  6. Step 6: Final answer
    x = 119,232.59

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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.