Home / 136,479.82-188,337.36-76,047.34

Finding the Fourth Proportional to 136,479.82, 188,337.36 and 76,047.34

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Solution

The fourth proportional to 136,479.82, 188,337.36 and 76,047.34 is: 104,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,479.82 : 188,337.36 = 76,047.34 : x
  2. Step 2: Convert to fraction form
    136,479.82/188,337.36 = 76,047.34/x
  3. Step 3: Cross multiply
    136,479.82x = 188,337.36 × 76,047.34
  4. Step 4: Simplify right side
    136,479.82x = 14,322,555,250.62
  5. Step 5: Solve for x
    x = 14,322,555,250.62/136,479.82
  6. Step 6: Final answer
    x = 104,942.66

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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.