Home / 190,908.20-285,779.10-148,917.80

Finding the Fourth Proportional to 190,908.20, 285,779.10 and 148,917.80

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Solution

The fourth proportional to 190,908.20, 285,779.10 and 148,917.80 is: 222,921.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,908.20 : 285,779.10 = 148,917.80 : x
  2. Step 2: Convert to fraction form
    190,908.20/285,779.10 = 148,917.80/x
  3. Step 3: Cross multiply
    190,908.20x = 285,779.10 × 148,917.80
  4. Step 4: Simplify right side
    190,908.20x = 42,557,594,857.98
  5. Step 5: Solve for x
    x = 42,557,594,857.98/190,908.20
  6. Step 6: Final answer
    x = 222,921.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.