Home / 136,519.12-188,397.26-76,093.60

Finding the Fourth Proportional to 136,519.12, 188,397.26 and 76,093.60

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Solution

The fourth proportional to 136,519.12, 188,397.26 and 76,093.60 is: 105,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,519.12 : 188,397.26 = 76,093.60 : x
  2. Step 2: Convert to fraction form
    136,519.12/188,397.26 = 76,093.60/x
  3. Step 3: Cross multiply
    136,519.12x = 188,397.26 × 76,093.60
  4. Step 4: Simplify right side
    136,519.12x = 14,335,826,169.27
  5. Step 5: Solve for x
    x = 14,335,826,169.27/136,519.12
  6. Step 6: Final answer
    x = 105,009.66

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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.