Home / 213,739.16-320,397.32-101,221.65

Finding the Fourth Proportional to 213,739.16, 320,397.32 and 101,221.65

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Solution

The fourth proportional to 213,739.16, 320,397.32 and 101,221.65 is: 151,732.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,739.16 : 320,397.32 = 101,221.65 : x
  2. Step 2: Convert to fraction form
    213,739.16/320,397.32 = 101,221.65/x
  3. Step 3: Cross multiply
    213,739.16x = 320,397.32 × 101,221.65
  4. Step 4: Simplify right side
    213,739.16x = 32,431,145,639.03
  5. Step 5: Solve for x
    x = 32,431,145,639.03/213,739.16
  6. Step 6: Final answer
    x = 151,732.36

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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.