Home / 200,455.56-276,618.78-109,811.90

Finding the Fourth Proportional to 200,455.56, 276,618.78 and 109,811.90

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Solution

The fourth proportional to 200,455.56, 276,618.78 and 109,811.90 is: 151,535.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,455.56 : 276,618.78 = 109,811.90 : x
  2. Step 2: Convert to fraction form
    200,455.56/276,618.78 = 109,811.90/x
  3. Step 3: Cross multiply
    200,455.56x = 276,618.78 × 109,811.90
  4. Step 4: Simplify right side
    200,455.56x = 30,376,033,807.48
  5. Step 5: Solve for x
    x = 30,376,033,807.48/200,455.56
  6. Step 6: Final answer
    x = 151,535.00

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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.