Home / 200,072.40-276,096.03-109,428.10

Finding the Fourth Proportional to 200,072.40, 276,096.03 and 109,428.10

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Solution

The fourth proportional to 200,072.40, 276,096.03 and 109,428.10 is: 151,008.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,072.40 : 276,096.03 = 109,428.10 : x
  2. Step 2: Convert to fraction form
    200,072.40/276,096.03 = 109,428.10/x
  3. Step 3: Cross multiply
    200,072.40x = 276,096.03 × 109,428.10
  4. Step 4: Simplify right side
    200,072.40x = 30,212,662,879.85
  5. Step 5: Solve for x
    x = 30,212,662,879.85/200,072.40
  6. Step 6: Final answer
    x = 151,008.65

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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.