Home / 190,821.17-263,321.40-104,779.80

Finding the Fourth Proportional to 190,821.17, 263,321.40 and 104,779.80

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Solution

The fourth proportional to 190,821.17, 263,321.40 and 104,779.80 is: 144,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,821.17 : 263,321.40 = 104,779.80 : x
  2. Step 2: Convert to fraction form
    190,821.17/263,321.40 = 104,779.80/x
  3. Step 3: Cross multiply
    190,821.17x = 263,321.40 × 104,779.80
  4. Step 4: Simplify right side
    190,821.17x = 27,590,763,627.72
  5. Step 5: Solve for x
    x = 27,590,763,627.72/190,821.17
  6. Step 6: Final answer
    x = 144,589.64

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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.