Home / 140,710.28-194,180.49-76,180.19

Finding the Fourth Proportional to 140,710.28, 194,180.49 and 76,180.19

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Solution

The fourth proportional to 140,710.28, 194,180.49 and 76,180.19 is: 105,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,710.28 : 194,180.49 = 76,180.19 : x
  2. Step 2: Convert to fraction form
    140,710.28/194,180.49 = 76,180.19/x
  3. Step 3: Cross multiply
    140,710.28x = 194,180.49 × 76,180.19
  4. Step 4: Simplify right side
    140,710.28x = 14,792,705,651.59
  5. Step 5: Solve for x
    x = 14,792,705,651.59/140,710.28
  6. Step 6: Final answer
    x = 105,128.82

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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.