Home / 101,619.68-140,258.48-67,629.60

Finding the Fourth Proportional to 101,619.68, 140,258.48 and 67,629.60

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Solution

The fourth proportional to 101,619.68, 140,258.48 and 67,629.60 is: 93,344.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,619.68 : 140,258.48 = 67,629.60 : x
  2. Step 2: Convert to fraction form
    101,619.68/140,258.48 = 67,629.60/x
  3. Step 3: Cross multiply
    101,619.68x = 140,258.48 × 67,629.60
  4. Step 4: Simplify right side
    101,619.68x = 9,485,624,560.86
  5. Step 5: Solve for x
    x = 9,485,624,560.86/101,619.68
  6. Step 6: Final answer
    x = 93,344.37

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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.