Home / 149,542.85-206,361.86-89,112.15

Finding the Fourth Proportional to 149,542.85, 206,361.86 and 89,112.15

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Solution

The fourth proportional to 149,542.85, 206,361.86 and 89,112.15 is: 122,970.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,542.85 : 206,361.86 = 89,112.15 : x
  2. Step 2: Convert to fraction form
    149,542.85/206,361.86 = 89,112.15/x
  3. Step 3: Cross multiply
    149,542.85x = 206,361.86 × 89,112.15
  4. Step 4: Simplify right side
    149,542.85x = 18,389,348,577.04
  5. Step 5: Solve for x
    x = 18,389,348,577.04/149,542.85
  6. Step 6: Final answer
    x = 122,970.43

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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.