Home / 109,351.26-163,656.43-67,258.05

Finding the Fourth Proportional to 109,351.26, 163,656.43 and 67,258.05

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Solution

The fourth proportional to 109,351.26, 163,656.43 and 67,258.05 is: 100,659.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,351.26 : 163,656.43 = 67,258.05 : x
  2. Step 2: Convert to fraction form
    109,351.26/163,656.43 = 67,258.05/x
  3. Step 3: Cross multiply
    109,351.26x = 163,656.43 × 67,258.05
  4. Step 4: Simplify right side
    109,351.26x = 11,007,211,569.90
  5. Step 5: Solve for x
    x = 11,007,211,569.90/109,351.26
  6. Step 6: Final answer
    x = 100,659.21

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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.