Home / 213,404.09-320,150.33-87,044.69

Finding the Fourth Proportional to 213,404.09, 320,150.33 and 87,044.69

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Solution

The fourth proportional to 213,404.09, 320,150.33 and 87,044.69 is: 130,585.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,404.09 : 320,150.33 = 87,044.69 : x
  2. Step 2: Convert to fraction form
    213,404.09/320,150.33 = 87,044.69/x
  3. Step 3: Cross multiply
    213,404.09x = 320,150.33 × 87,044.69
  4. Step 4: Simplify right side
    213,404.09x = 27,867,384,192.27
  5. Step 5: Solve for x
    x = 27,867,384,192.27/213,404.09
  6. Step 6: Final answer
    x = 130,585.06

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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.