Home / 149,392.46-206,159.03-81,410.02

Finding the Fourth Proportional to 149,392.46, 206,159.03 and 81,410.02

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Solution

The fourth proportional to 149,392.46, 206,159.03 and 81,410.02 is: 112,344.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,392.46 : 206,159.03 = 81,410.02 : x
  2. Step 2: Convert to fraction form
    149,392.46/206,159.03 = 81,410.02/x
  3. Step 3: Cross multiply
    149,392.46x = 206,159.03 × 81,410.02
  4. Step 4: Simplify right side
    149,392.46x = 16,783,409,934.80
  5. Step 5: Solve for x
    x = 16,783,409,934.80/149,392.46
  6. Step 6: Final answer
    x = 112,344.43

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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.