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Finding the Fourth Proportional to 114,361.80, 171,639.90 and 92,200.20

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Solution

The fourth proportional to 114,361.80, 171,639.90 and 92,200.20 is: 138,378.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,361.80 : 171,639.90 = 92,200.20 : x
  2. Step 2: Convert to fraction form
    114,361.80/171,639.90 = 92,200.20/x
  3. Step 3: Cross multiply
    114,361.80x = 171,639.90 × 92,200.20
  4. Step 4: Simplify right side
    114,361.80x = 15,825,233,107.98
  5. Step 5: Solve for x
    x = 15,825,233,107.98/114,361.80
  6. Step 6: Final answer
    x = 138,378.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.