Home / 111,508.02-153,857.97-66,179.61

Finding the Fourth Proportional to 111,508.02, 153,857.97 and 66,179.61

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Solution

The fourth proportional to 111,508.02, 153,857.97 and 66,179.61 is: 91,314.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,508.02 : 153,857.97 = 66,179.61 : x
  2. Step 2: Convert to fraction form
    111,508.02/153,857.97 = 66,179.61/x
  3. Step 3: Cross multiply
    111,508.02x = 153,857.97 × 66,179.61
  4. Step 4: Simplify right side
    111,508.02x = 10,182,260,449.99
  5. Step 5: Solve for x
    x = 10,182,260,449.99/111,508.02
  6. Step 6: Final answer
    x = 91,314.15

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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.