Home / 215,090.92-322,356.06-109,821.16

Finding the Fourth Proportional to 215,090.92, 322,356.06 and 109,821.16

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Solution

The fourth proportional to 215,090.92, 322,356.06 and 109,821.16 is: 164,588.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,090.92 : 322,356.06 = 109,821.16 : x
  2. Step 2: Convert to fraction form
    215,090.92/322,356.06 = 109,821.16/x
  3. Step 3: Cross multiply
    215,090.92x = 322,356.06 × 109,821.16
  4. Step 4: Simplify right side
    215,090.92x = 35,401,516,442.23
  5. Step 5: Solve for x
    x = 35,401,516,442.23/215,090.92
  6. Step 6: Final answer
    x = 164,588.61

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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.