Home / 109,487.20-163,971.60-67,496.80

Finding the Fourth Proportional to 109,487.20, 163,971.60 and 67,496.80

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Solution

The fourth proportional to 109,487.20, 163,971.60 and 67,496.80 is: 101,085.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,487.20 : 163,971.60 = 67,496.80 : x
  2. Step 2: Convert to fraction form
    109,487.20/163,971.60 = 67,496.80/x
  3. Step 3: Cross multiply
    109,487.20x = 163,971.60 × 67,496.80
  4. Step 4: Simplify right side
    109,487.20x = 11,067,558,290.88
  5. Step 5: Solve for x
    x = 11,067,558,290.88/109,487.20
  6. Step 6: Final answer
    x = 101,085.41

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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.