Home / 215,055.45-322,648.78-109,948.23

Finding the Fourth Proportional to 215,055.45, 322,648.78 and 109,948.23

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Solution

The fourth proportional to 215,055.45, 322,648.78 and 109,948.23 is: 164,955.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,055.45 : 322,648.78 = 109,948.23 : x
  2. Step 2: Convert to fraction form
    215,055.45/322,648.78 = 109,948.23/x
  3. Step 3: Cross multiply
    215,055.45x = 322,648.78 × 109,948.23
  4. Step 4: Simplify right side
    215,055.45x = 35,474,662,272.66
  5. Step 5: Solve for x
    x = 35,474,662,272.66/215,055.45
  6. Step 6: Final answer
    x = 164,955.89

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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.