Home / 201,684.15-278,321.81-111,038.20

Finding the Fourth Proportional to 201,684.15, 278,321.81 and 111,038.20

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Solution

The fourth proportional to 201,684.15, 278,321.81 and 111,038.20 is: 153,231.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,684.15 : 278,321.81 = 111,038.20 : x
  2. Step 2: Convert to fraction form
    201,684.15/278,321.81 = 111,038.20/x
  3. Step 3: Cross multiply
    201,684.15x = 278,321.81 × 111,038.20
  4. Step 4: Simplify right side
    201,684.15x = 30,904,351,552.15
  5. Step 5: Solve for x
    x = 30,904,351,552.15/201,684.15
  6. Step 6: Final answer
    x = 153,231.43

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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.