Home / 141,321.48-195,032.37-80,890.75

Finding the Fourth Proportional to 141,321.48, 195,032.37 and 80,890.75

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Solution

The fourth proportional to 141,321.48, 195,032.37 and 80,890.75 is: 111,634.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,321.48 : 195,032.37 = 80,890.75 : x
  2. Step 2: Convert to fraction form
    141,321.48/195,032.37 = 80,890.75/x
  3. Step 3: Cross multiply
    141,321.48x = 195,032.37 × 80,890.75
  4. Step 4: Simplify right side
    141,321.48x = 15,776,314,683.58
  5. Step 5: Solve for x
    x = 15,776,314,683.58/141,321.48
  6. Step 6: Final answer
    x = 111,634.23

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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.