Home / 115,112.48-172,668.72-108,615.20

Finding the Fourth Proportional to 115,112.48, 172,668.72 and 108,615.20

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Solution

The fourth proportional to 115,112.48, 172,668.72 and 108,615.20 is: 162,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,112.48 : 172,668.72 = 108,615.20 : x
  2. Step 2: Convert to fraction form
    115,112.48/172,668.72 = 108,615.20/x
  3. Step 3: Cross multiply
    115,112.48x = 172,668.72 × 108,615.20
  4. Step 4: Simplify right side
    115,112.48x = 18,754,447,556.54
  5. Step 5: Solve for x
    x = 18,754,447,556.54/115,112.48
  6. Step 6: Final answer
    x = 162,922.80

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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.