Home / 213,829.16-320,992.20-125,146.32

Finding the Fourth Proportional to 213,829.16, 320,992.20 and 125,146.32

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Solution

The fourth proportional to 213,829.16, 320,992.20 and 125,146.32 is: 187,864.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,829.16 : 320,992.20 = 125,146.32 : x
  2. Step 2: Convert to fraction form
    213,829.16/320,992.20 = 125,146.32/x
  3. Step 3: Cross multiply
    213,829.16x = 320,992.20 × 125,146.32
  4. Step 4: Simplify right side
    213,829.16x = 40,170,992,578.70
  5. Step 5: Solve for x
    x = 40,170,992,578.70/213,829.16
  6. Step 6: Final answer
    x = 187,864.89

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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.