Home / 136,623.66-188,540.30-76,194.38

Finding the Fourth Proportional to 136,623.66, 188,540.30 and 76,194.38

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Solution

The fourth proportional to 136,623.66, 188,540.30 and 76,194.38 is: 105,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,623.66 : 188,540.30 = 76,194.38 : x
  2. Step 2: Convert to fraction form
    136,623.66/188,540.30 = 76,194.38/x
  3. Step 3: Cross multiply
    136,623.66x = 188,540.30 × 76,194.38
  4. Step 4: Simplify right side
    136,623.66x = 14,365,711,263.51
  5. Step 5: Solve for x
    x = 14,365,711,263.51/136,623.66
  6. Step 6: Final answer
    x = 105,148.05

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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.