Home / 140,926.80-194,471.60-80,485.58

Finding the Fourth Proportional to 140,926.80, 194,471.60 and 80,485.58

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Solution

The fourth proportional to 140,926.80, 194,471.60 and 80,485.58 is: 111,065.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,926.80 : 194,471.60 = 80,485.58 : x
  2. Step 2: Convert to fraction form
    140,926.80/194,471.60 = 80,485.58/x
  3. Step 3: Cross multiply
    140,926.80x = 194,471.60 × 80,485.58
  4. Step 4: Simplify right side
    140,926.80x = 15,652,159,519.53
  5. Step 5: Solve for x
    x = 15,652,159,519.53/140,926.80
  6. Step 6: Final answer
    x = 111,065.88

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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.