Home / 102,836.70-154,180.44-69,474.06

Finding the Fourth Proportional to 102,836.70, 154,180.44 and 69,474.06

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Solution

The fourth proportional to 102,836.70, 154,180.44 and 69,474.06 is: 104,160.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,836.70 : 154,180.44 = 69,474.06 : x
  2. Step 2: Convert to fraction form
    102,836.70/154,180.44 = 69,474.06/x
  3. Step 3: Cross multiply
    102,836.70x = 154,180.44 × 69,474.06
  4. Step 4: Simplify right side
    102,836.70x = 10,711,541,139.39
  5. Step 5: Solve for x
    x = 10,711,541,139.39/102,836.70
  6. Step 6: Final answer
    x = 104,160.69

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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.