Home / 215,923.25-323,873.21-66,164.00

Finding the Fourth Proportional to 215,923.25, 323,873.21 and 66,164.00

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Solution

The fourth proportional to 215,923.25, 323,873.21 and 66,164.00 is: 99,242.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,923.25 : 323,873.21 = 66,164.00 : x
  2. Step 2: Convert to fraction form
    215,923.25/323,873.21 = 66,164.00/x
  3. Step 3: Cross multiply
    215,923.25x = 323,873.21 × 66,164.00
  4. Step 4: Simplify right side
    215,923.25x = 21,428,745,116.25
  5. Step 5: Solve for x
    x = 21,428,745,116.25/215,923.25
  6. Step 6: Final answer
    x = 99,242.42

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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.