Home / 215,313.66-323,023.86-103,079.16

Finding the Fourth Proportional to 215,313.66, 323,023.86 and 103,079.16

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Solution

The fourth proportional to 215,313.66, 323,023.86 and 103,079.16 is: 154,644.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,313.66 : 323,023.86 = 103,079.16 : x
  2. Step 2: Convert to fraction form
    215,313.66/323,023.86 = 103,079.16/x
  3. Step 3: Cross multiply
    215,313.66x = 323,023.86 × 103,079.16
  4. Step 4: Simplify right side
    215,313.66x = 33,297,028,148.76
  5. Step 5: Solve for x
    x = 33,297,028,148.76/215,313.66
  6. Step 6: Final answer
    x = 154,644.29

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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.