Home / 100,188.26-138,194.60-67,537.56

Finding the Fourth Proportional to 100,188.26, 138,194.60 and 67,537.56

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Solution

The fourth proportional to 100,188.26, 138,194.60 and 67,537.56 is: 93,157.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,188.26 : 138,194.60 = 67,537.56 : x
  2. Step 2: Convert to fraction form
    100,188.26/138,194.60 = 67,537.56/x
  3. Step 3: Cross multiply
    100,188.26x = 138,194.60 × 67,537.56
  4. Step 4: Simplify right side
    100,188.26x = 9,333,325,751.49
  5. Step 5: Solve for x
    x = 9,333,325,751.49/100,188.26
  6. Step 6: Final answer
    x = 93,157.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.