Home / 140,909.02-194,450.42-80,478.41

Finding the Fourth Proportional to 140,909.02, 194,450.42 and 80,478.41

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Solution

The fourth proportional to 140,909.02, 194,450.42 and 80,478.41 is: 111,057.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,909.02 : 194,450.42 = 80,478.41 : x
  2. Step 2: Convert to fraction form
    140,909.02/194,450.42 = 80,478.41/x
  3. Step 3: Cross multiply
    140,909.02x = 194,450.42 × 80,478.41
  4. Step 4: Simplify right side
    140,909.02x = 15,649,060,948.16
  5. Step 5: Solve for x
    x = 15,649,060,948.16/140,909.02
  6. Step 6: Final answer
    x = 111,057.91

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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.