Home / 103,112.84-154,687.62-53,179.45

Finding the Fourth Proportional to 103,112.84, 154,687.62 and 53,179.45

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Solution

The fourth proportional to 103,112.84, 154,687.62 and 53,179.45 is: 79,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,112.84 : 154,687.62 = 53,179.45 : x
  2. Step 2: Convert to fraction form
    103,112.84/154,687.62 = 53,179.45/x
  3. Step 3: Cross multiply
    103,112.84x = 154,687.62 × 53,179.45
  4. Step 4: Simplify right side
    103,112.84x = 8,226,202,553.41
  5. Step 5: Solve for x
    x = 8,226,202,553.41/103,112.84
  6. Step 6: Final answer
    x = 79,778.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.