Home / 213,432.72-320,165.04-63,661.20

Finding the Fourth Proportional to 213,432.72, 320,165.04 and 63,661.20

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Solution

The fourth proportional to 213,432.72, 320,165.04 and 63,661.20 is: 95,496.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,432.72 : 320,165.04 = 63,661.20 : x
  2. Step 2: Convert to fraction form
    213,432.72/320,165.04 = 63,661.20/x
  3. Step 3: Cross multiply
    213,432.72x = 320,165.04 × 63,661.20
  4. Step 4: Simplify right side
    213,432.72x = 20,382,090,644.45
  5. Step 5: Solve for x
    x = 20,382,090,644.45/213,432.72
  6. Step 6: Final answer
    x = 95,496.56

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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.