Home / 190,632.58-263,104.50-105,776.98

Finding the Fourth Proportional to 190,632.58, 263,104.50 and 105,776.98

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Solution

The fourth proportional to 190,632.58, 263,104.50 and 105,776.98 is: 145,989.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,632.58 : 263,104.50 = 105,776.98 : x
  2. Step 2: Convert to fraction form
    190,632.58/263,104.50 = 105,776.98/x
  3. Step 3: Cross multiply
    190,632.58x = 263,104.50 × 105,776.98
  4. Step 4: Simplify right side
    190,632.58x = 27,830,399,434.41
  5. Step 5: Solve for x
    x = 27,830,399,434.41/190,632.58
  6. Step 6: Final answer
    x = 145,989.73

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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.