Home / 213,921.80-320,882.70-56,166.20

Finding the Fourth Proportional to 213,921.80, 320,882.70 and 56,166.20

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Solution

The fourth proportional to 213,921.80, 320,882.70 and 56,166.20 is: 84,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,921.80 : 320,882.70 = 56,166.20 : x
  2. Step 2: Convert to fraction form
    213,921.80/320,882.70 = 56,166.20/x
  3. Step 3: Cross multiply
    213,921.80x = 320,882.70 × 56,166.20
  4. Step 4: Simplify right side
    213,921.80x = 18,022,761,904.74
  5. Step 5: Solve for x
    x = 18,022,761,904.74/213,921.80
  6. Step 6: Final answer
    x = 84,249.30

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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.