Home / 111,599.32-153,983.10-66,292.58

Finding the Fourth Proportional to 111,599.32, 153,983.10 and 66,292.58

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Solution

The fourth proportional to 111,599.32, 153,983.10 and 66,292.58 is: 91,469.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,599.32 : 153,983.10 = 66,292.58 : x
  2. Step 2: Convert to fraction form
    111,599.32/153,983.10 = 66,292.58/x
  3. Step 3: Cross multiply
    111,599.32x = 153,983.10 × 66,292.58
  4. Step 4: Simplify right side
    111,599.32x = 10,207,936,556.35
  5. Step 5: Solve for x
    x = 10,207,936,556.35/111,599.32
  6. Step 6: Final answer
    x = 91,469.52

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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.