Home / 213,824.95-320,808.65-71,684.26

Finding the Fourth Proportional to 213,824.95, 320,808.65 and 71,684.26

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Solution

The fourth proportional to 213,824.95, 320,808.65 and 71,684.26 is: 107,550.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,824.95 : 320,808.65 = 71,684.26 : x
  2. Step 2: Convert to fraction form
    213,824.95/320,808.65 = 71,684.26/x
  3. Step 3: Cross multiply
    213,824.95x = 320,808.65 × 71,684.26
  4. Step 4: Simplify right side
    213,824.95x = 22,996,929,516.41
  5. Step 5: Solve for x
    x = 22,996,929,516.41/213,824.95
  6. Step 6: Final answer
    x = 107,550.26

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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.