Home / 201,942.74-278,669.60-111,298.42

Finding the Fourth Proportional to 201,942.74, 278,669.60 and 111,298.42

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Solution

The fourth proportional to 201,942.74, 278,669.60 and 111,298.42 is: 153,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,942.74 : 278,669.60 = 111,298.42 : x
  2. Step 2: Convert to fraction form
    201,942.74/278,669.60 = 111,298.42/x
  3. Step 3: Cross multiply
    201,942.74x = 278,669.60 × 111,298.42
  4. Step 4: Simplify right side
    201,942.74x = 31,015,484,928.87
  5. Step 5: Solve for x
    x = 31,015,484,928.87/201,942.74
  6. Step 6: Final answer
    x = 153,585.54

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1.5x scale

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.