Home / 215,427.56-323,141.48-103,081.36

Finding the Fourth Proportional to 215,427.56, 323,141.48 and 103,081.36

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Solution

The fourth proportional to 215,427.56, 323,141.48 and 103,081.36 is: 154,622.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,427.56 : 323,141.48 = 103,081.36 : x
  2. Step 2: Convert to fraction form
    215,427.56/323,141.48 = 103,081.36/x
  3. Step 3: Cross multiply
    215,427.56x = 323,141.48 × 103,081.36
  4. Step 4: Simplify right side
    215,427.56x = 33,309,863,230.81
  5. Step 5: Solve for x
    x = 33,309,863,230.81/215,427.56
  6. Step 6: Final answer
    x = 154,622.11

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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.