Home / 136,519.88-188,398.36-76,094.42

Finding the Fourth Proportional to 136,519.88, 188,398.36 and 76,094.42

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Solution

The fourth proportional to 136,519.88, 188,398.36 and 76,094.42 is: 105,010.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,519.88 : 188,398.36 = 76,094.42 : x
  2. Step 2: Convert to fraction form
    136,519.88/188,398.36 = 76,094.42/x
  3. Step 3: Cross multiply
    136,519.88x = 188,398.36 × 76,094.42
  4. Step 4: Simplify right side
    136,519.88x = 14,336,063,933.15
  5. Step 5: Solve for x
    x = 14,336,063,933.15/136,519.88
  6. Step 6: Final answer
    x = 105,010.82

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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.