Home / 109,387.26-163,896.15-67,179.30

Finding the Fourth Proportional to 109,387.26, 163,896.15 and 67,179.30

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Solution

The fourth proportional to 109,387.26, 163,896.15 and 67,179.30 is: 100,655.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,387.26 : 163,896.15 = 67,179.30 : x
  2. Step 2: Convert to fraction form
    109,387.26/163,896.15 = 67,179.30/x
  3. Step 3: Cross multiply
    109,387.26x = 163,896.15 × 67,179.30
  4. Step 4: Simplify right side
    109,387.26x = 11,010,428,629.70
  5. Step 5: Solve for x
    x = 11,010,428,629.70/109,387.26
  6. Step 6: Final answer
    x = 100,655.49

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1.5x scale

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.