Home / 109,291.78-163,682.52-84,132.19

Finding the Fourth Proportional to 109,291.78, 163,682.52 and 84,132.19

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Solution

The fourth proportional to 109,291.78, 163,682.52 and 84,132.19 is: 126,001.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,291.78 : 163,682.52 = 84,132.19 : x
  2. Step 2: Convert to fraction form
    109,291.78/163,682.52 = 84,132.19/x
  3. Step 3: Cross multiply
    109,291.78x = 163,682.52 × 84,132.19
  4. Step 4: Simplify right side
    109,291.78x = 13,770,968,872.32
  5. Step 5: Solve for x
    x = 13,770,968,872.32/109,291.78
  6. Step 6: Final answer
    x = 126,001.87

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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.