Home / 111,598.26-167,186.34-86,515.44

Finding the Fourth Proportional to 111,598.26, 167,186.34 and 86,515.44

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Solution

The fourth proportional to 111,598.26, 167,186.34 and 86,515.44 is: 129,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,598.26 : 167,186.34 = 86,515.44 : x
  2. Step 2: Convert to fraction form
    111,598.26/167,186.34 = 86,515.44/x
  3. Step 3: Cross multiply
    111,598.26x = 167,186.34 × 86,515.44
  4. Step 4: Simplify right side
    111,598.26x = 14,464,199,767.09
  5. Step 5: Solve for x
    x = 14,464,199,767.09/111,598.26
  6. Step 6: Final answer
    x = 129,609.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.