Home / 177,749.24-245,147.78-126,745.65

Finding the Fourth Proportional to 177,749.24, 245,147.78 and 126,745.65

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Solution

The fourth proportional to 177,749.24, 245,147.78 and 126,745.65 is: 174,804.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,749.24 : 245,147.78 = 126,745.65 : x
  2. Step 2: Convert to fraction form
    177,749.24/245,147.78 = 126,745.65/x
  3. Step 3: Cross multiply
    177,749.24x = 245,147.78 × 126,745.65
  4. Step 4: Simplify right side
    177,749.24x = 31,071,415,039.02
  5. Step 5: Solve for x
    x = 31,071,415,039.02/177,749.24
  6. Step 6: Final answer
    x = 174,804.78

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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.