Home / 213,824.86-320,808.54-71,684.19

Finding the Fourth Proportional to 213,824.86, 320,808.54 and 71,684.19

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Solution

The fourth proportional to 213,824.86, 320,808.54 and 71,684.19 is: 107,550.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,824.86 : 320,808.54 = 71,684.19 : x
  2. Step 2: Convert to fraction form
    213,824.86/320,808.54 = 71,684.19/x
  3. Step 3: Cross multiply
    213,824.86x = 320,808.54 × 71,684.19
  4. Step 4: Simplify right side
    213,824.86x = 22,996,898,730.94
  5. Step 5: Solve for x
    x = 22,996,898,730.94/213,824.86
  6. Step 6: Final answer
    x = 107,550.17

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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.