Home / 154,736.96-213,536.64-87,668.96

Finding the Fourth Proportional to 154,736.96, 213,536.64 and 87,668.96

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Solution

The fourth proportional to 154,736.96, 213,536.64 and 87,668.96 is: 120,982.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,736.96 : 213,536.64 = 87,668.96 : x
  2. Step 2: Convert to fraction form
    154,736.96/213,536.64 = 87,668.96/x
  3. Step 3: Cross multiply
    154,736.96x = 213,536.64 × 87,668.96
  4. Step 4: Simplify right side
    154,736.96x = 18,720,535,150.69
  5. Step 5: Solve for x
    x = 18,720,535,150.69/154,736.96
  6. Step 6: Final answer
    x = 120,982.96

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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.