Home / 201,698.09-278,341.07-111,052.20

Finding the Fourth Proportional to 201,698.09, 278,341.07 and 111,052.20

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Solution

The fourth proportional to 201,698.09, 278,341.07 and 111,052.20 is: 153,250.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,698.09 : 278,341.07 = 111,052.20 : x
  2. Step 2: Convert to fraction form
    201,698.09/278,341.07 = 111,052.20/x
  3. Step 3: Cross multiply
    201,698.09x = 278,341.07 × 111,052.20
  4. Step 4: Simplify right side
    201,698.09x = 30,910,388,173.85
  5. Step 5: Solve for x
    x = 30,910,388,173.85/201,698.09
  6. Step 6: Final answer
    x = 153,250.77

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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.