Home / 111,519.02-153,886.02-66,189.26

Finding the Fourth Proportional to 111,519.02, 153,886.02 and 66,189.26

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Solution

The fourth proportional to 111,519.02, 153,886.02 and 66,189.26 is: 91,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,519.02 : 153,886.02 = 66,189.26 : x
  2. Step 2: Convert to fraction form
    111,519.02/153,886.02 = 66,189.26/x
  3. Step 3: Cross multiply
    111,519.02x = 153,886.02 × 66,189.26
  4. Step 4: Simplify right side
    111,519.02x = 10,185,601,788.15
  5. Step 5: Solve for x
    x = 10,185,601,788.15/111,519.02
  6. Step 6: Final answer
    x = 91,335.11

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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.