Home / 190,576.85-263,012.21-105,721.25

Finding the Fourth Proportional to 190,576.85, 263,012.21 and 105,721.25

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Solution

The fourth proportional to 190,576.85, 263,012.21 and 105,721.25 is: 145,904.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,576.85 : 263,012.21 = 105,721.25 : x
  2. Step 2: Convert to fraction form
    190,576.85/263,012.21 = 105,721.25/x
  3. Step 3: Cross multiply
    190,576.85x = 263,012.21 × 105,721.25
  4. Step 4: Simplify right side
    190,576.85x = 27,805,979,077.86
  5. Step 5: Solve for x
    x = 27,805,979,077.86/190,576.85
  6. Step 6: Final answer
    x = 145,904.29

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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.