Home / 158,042,103.37-218,103,942.05-86,519,998.56

Finding the Fourth Proportional to 158,042,103.37, 218,103,942.05 and 86,519,998.56

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Solution

The fourth proportional to 158,042,103.37, 218,103,942.05 and 86,519,998.56 is: 119,400,794.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,042,103.37 : 218,103,942.05 = 86,519,998.56 : x
  2. Step 2: Convert to fraction form
    158,042,103.37/218,103,942.05 = 86,519,998.56/x
  3. Step 3: Cross multiply
    158,042,103.37x = 218,103,942.05 × 86,519,998.56
  4. Step 4: Simplify right side
    158,042,103.37x = 18,870,352,752,096,324
  5. Step 5: Solve for x
    x = 18,870,352,752,096,324/158,042,103.37
  6. Step 6: Final answer
    x = 119,400,794.79

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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.