Home / 111,240.35-153,469.31-82,238.36

Finding the Fourth Proportional to 111,240.35, 153,469.31 and 82,238.36

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Solution

The fourth proportional to 111,240.35, 153,469.31 and 82,238.36 is: 113,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,240.35 : 153,469.31 = 82,238.36 : x
  2. Step 2: Convert to fraction form
    111,240.35/153,469.31 = 82,238.36/x
  3. Step 3: Cross multiply
    111,240.35x = 153,469.31 × 82,238.36
  4. Step 4: Simplify right side
    111,240.35x = 12,621,063,186.19
  5. Step 5: Solve for x
    x = 12,621,063,186.19/111,240.35
  6. Step 6: Final answer
    x = 113,457.60

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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.