Home / 111,787.24-154,188.28-75,914.98

Finding the Fourth Proportional to 111,787.24, 154,188.28 and 75,914.98

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Solution

The fourth proportional to 111,787.24, 154,188.28 and 75,914.98 is: 104,709.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,787.24 : 154,188.28 = 75,914.98 : x
  2. Step 2: Convert to fraction form
    111,787.24/154,188.28 = 75,914.98/x
  3. Step 3: Cross multiply
    111,787.24x = 154,188.28 × 75,914.98
  4. Step 4: Simplify right side
    111,787.24x = 11,705,200,192.43
  5. Step 5: Solve for x
    x = 11,705,200,192.43/111,787.24
  6. Step 6: Final answer
    x = 104,709.63

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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.