Home / 201,943.05-278,670.03-111,298.73

Finding the Fourth Proportional to 201,943.05, 278,670.03 and 111,298.73

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Solution

The fourth proportional to 201,943.05, 278,670.03 and 111,298.73 is: 153,585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,943.05 : 278,670.03 = 111,298.73 : x
  2. Step 2: Convert to fraction form
    201,943.05/278,670.03 = 111,298.73/x
  3. Step 3: Cross multiply
    201,943.05x = 278,670.03 × 111,298.73
  4. Step 4: Simplify right side
    201,943.05x = 31,015,620,428.06
  5. Step 5: Solve for x
    x = 31,015,620,428.06/201,943.05
  6. Step 6: Final answer
    x = 153,585.98

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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.