Home / 213,505.39-320,252.96-69,411.03

Finding the Fourth Proportional to 213,505.39, 320,252.96 and 69,411.03

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Solution

The fourth proportional to 213,505.39, 320,252.96 and 69,411.03 is: 104,114.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,505.39 : 320,252.96 = 69,411.03 : x
  2. Step 2: Convert to fraction form
    213,505.39/320,252.96 = 69,411.03/x
  3. Step 3: Cross multiply
    213,505.39x = 320,252.96 × 69,411.03
  4. Step 4: Simplify right side
    213,505.39x = 22,229,087,814.15
  5. Step 5: Solve for x
    x = 22,229,087,814.15/213,505.39
  6. Step 6: Final answer
    x = 104,114.88

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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.