Home / 215,428.56-323,290.44-75,187.19

Finding the Fourth Proportional to 215,428.56, 323,290.44 and 75,187.19

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Solution

The fourth proportional to 215,428.56, 323,290.44 and 75,187.19 is: 112,832.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,428.56 : 323,290.44 = 75,187.19 : x
  2. Step 2: Convert to fraction form
    215,428.56/323,290.44 = 75,187.19/x
  3. Step 3: Cross multiply
    215,428.56x = 323,290.44 × 75,187.19
  4. Step 4: Simplify right side
    215,428.56x = 24,307,298,121.01
  5. Step 5: Solve for x
    x = 24,307,298,121.01/215,428.56
  6. Step 6: Final answer
    x = 112,832.29

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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.