Home / 215,091.76-322,703.28-109,984.56

Finding the Fourth Proportional to 215,091.76, 322,703.28 and 109,984.56

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Solution

The fourth proportional to 215,091.76, 322,703.28 and 109,984.56 is: 165,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,091.76 : 322,703.28 = 109,984.56 : x
  2. Step 2: Convert to fraction form
    215,091.76/322,703.28 = 109,984.56/x
  3. Step 3: Cross multiply
    215,091.76x = 322,703.28 × 109,984.56
  4. Step 4: Simplify right side
    215,091.76x = 35,492,378,261.36
  5. Step 5: Solve for x
    x = 35,492,378,261.36/215,091.76
  6. Step 6: Final answer
    x = 165,010.40

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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.