Home / 215,219.64-322,816.96-82,113.33

Finding the Fourth Proportional to 215,219.64, 322,816.96 and 82,113.33

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Solution

The fourth proportional to 215,219.64, 322,816.96 and 82,113.33 is: 123,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,219.64 : 322,816.96 = 82,113.33 : x
  2. Step 2: Convert to fraction form
    215,219.64/322,816.96 = 82,113.33/x
  3. Step 3: Cross multiply
    215,219.64x = 322,816.96 × 82,113.33
  4. Step 4: Simplify right side
    215,219.64x = 26,507,575,566.08
  5. Step 5: Solve for x
    x = 26,507,575,566.08/215,219.64
  6. Step 6: Final answer
    x = 123,165.23

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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.