Home / 213,844.06-320,127-129,348.52

Finding the Fourth Proportional to 213,844.06, 320,127 and 129,348.52

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Solution

The fourth proportional to 213,844.06, 320,127 and 129,348.52 is: 193,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,844.06 : 320,127 = 129,348.52 : x
  2. Step 2: Convert to fraction form
    213,844.06/320,127 = 129,348.52/x
  3. Step 3: Cross multiply
    213,844.06x = 320,127 × 129,348.52
  4. Step 4: Simplify right side
    213,844.06x = 41,407,953,662.04
  5. Step 5: Solve for x
    x = 41,407,953,662.04/213,844.06
  6. Step 6: Final answer
    x = 193,636.21

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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.