Home / 140,803.09-194,309.41-80,373.04

Finding the Fourth Proportional to 140,803.09, 194,309.41 and 80,373.04

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Solution

The fourth proportional to 140,803.09, 194,309.41 and 80,373.04 is: 110,915.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,803.09 : 194,309.41 = 80,373.04 : x
  2. Step 2: Convert to fraction form
    140,803.09/194,309.41 = 80,373.04/x
  3. Step 3: Cross multiply
    140,803.09x = 194,309.41 × 80,373.04
  4. Step 4: Simplify right side
    140,803.09x = 15,617,237,982.31
  5. Step 5: Solve for x
    x = 15,617,237,982.31/140,803.09
  6. Step 6: Final answer
    x = 110,915.45

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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.