Home / 201,932.52-278,665.67-111,288.55

Finding the Fourth Proportional to 201,932.52, 278,665.67 and 111,288.55

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Solution

The fourth proportional to 201,932.52, 278,665.67 and 111,288.55 is: 153,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,932.52 : 278,665.67 = 111,288.55 : x
  2. Step 2: Convert to fraction form
    201,932.52/278,665.67 = 111,288.55/x
  3. Step 3: Cross multiply
    201,932.52x = 278,665.67 × 111,288.55
  4. Step 4: Simplify right side
    201,932.52x = 31,012,298,349.08
  5. Step 5: Solve for x
    x = 31,012,298,349.08/201,932.52
  6. Step 6: Final answer
    x = 153,577.53

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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.