Home / 111,655.29-154,091.19-63,907.55

Finding the Fourth Proportional to 111,655.29, 154,091.19 and 63,907.55

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Solution

The fourth proportional to 111,655.29, 154,091.19 and 63,907.55 is: 88,196.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,655.29 : 154,091.19 = 63,907.55 : x
  2. Step 2: Convert to fraction form
    111,655.29/154,091.19 = 63,907.55/x
  3. Step 3: Cross multiply
    111,655.29x = 154,091.19 × 63,907.55
  4. Step 4: Simplify right side
    111,655.29x = 9,847,589,659.03
  5. Step 5: Solve for x
    x = 9,847,589,659.03/111,655.29
  6. Step 6: Final answer
    x = 88,196.36

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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.