Home / 190,764.40-263,278.20-105,908.80

Finding the Fourth Proportional to 190,764.40, 263,278.20 and 105,908.80

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Solution

The fourth proportional to 190,764.40, 263,278.20 and 105,908.80 is: 146,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,764.40 : 263,278.20 = 105,908.80 : x
  2. Step 2: Convert to fraction form
    190,764.40/263,278.20 = 105,908.80/x
  3. Step 3: Cross multiply
    190,764.40x = 263,278.20 × 105,908.80
  4. Step 4: Simplify right side
    190,764.40x = 27,883,478,228.16
  5. Step 5: Solve for x
    x = 27,883,478,228.16/190,764.40
  6. Step 6: Final answer
    x = 146,167.10

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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.