Home / 140,756.65-194,258.14-80,336.42

Finding the Fourth Proportional to 140,756.65, 194,258.14 and 80,336.42

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Solution

The fourth proportional to 140,756.65, 194,258.14 and 80,336.42 is: 110,872.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,756.65 : 194,258.14 = 80,336.42 : x
  2. Step 2: Convert to fraction form
    140,756.65/194,258.14 = 80,336.42/x
  3. Step 3: Cross multiply
    140,756.65x = 194,258.14 × 80,336.42
  4. Step 4: Simplify right side
    140,756.65x = 15,606,003,523.46
  5. Step 5: Solve for x
    x = 15,606,003,523.46/140,756.65
  6. Step 6: Final answer
    x = 110,872.23

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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.