Home / 225,669.14-311,455.35-139,655.83

Finding the Fourth Proportional to 225,669.14, 311,455.35 and 139,655.83

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Solution

The fourth proportional to 225,669.14, 311,455.35 and 139,655.83 is: 192,744.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,669.14 : 311,455.35 = 139,655.83 : x
  2. Step 2: Convert to fraction form
    225,669.14/311,455.35 = 139,655.83/x
  3. Step 3: Cross multiply
    225,669.14x = 311,455.35 × 139,655.83
  4. Step 4: Simplify right side
    225,669.14x = 43,496,555,412.19
  5. Step 5: Solve for x
    x = 43,496,555,412.19/225,669.14
  6. Step 6: Final answer
    x = 192,744.81

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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.