Home / 149,004.32-205,626.97-81,022.03

Finding the Fourth Proportional to 149,004.32, 205,626.97 and 81,022.03

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Solution

The fourth proportional to 149,004.32, 205,626.97 and 81,022.03 is: 111,810.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,004.32 : 205,626.97 = 81,022.03 : x
  2. Step 2: Convert to fraction form
    149,004.32/205,626.97 = 81,022.03/x
  3. Step 3: Cross multiply
    149,004.32x = 205,626.97 × 81,022.03
  4. Step 4: Simplify right side
    149,004.32x = 16,660,314,119.36
  5. Step 5: Solve for x
    x = 16,660,314,119.36/149,004.32
  6. Step 6: Final answer
    x = 111,810.95

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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.