Home / 190,661.72-263,109.67-105,776.96

Finding the Fourth Proportional to 190,661.72, 263,109.67 and 105,776.96

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Solution

The fourth proportional to 190,661.72, 263,109.67 and 105,776.96 is: 145,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,661.72 : 263,109.67 = 105,776.96 : x
  2. Step 2: Convert to fraction form
    190,661.72/263,109.67 = 105,776.96/x
  3. Step 3: Cross multiply
    190,661.72x = 263,109.67 × 105,776.96
  4. Step 4: Simplify right side
    190,661.72x = 27,830,939,459.21
  5. Step 5: Solve for x
    x = 27,830,939,459.21/190,661.72
  6. Step 6: Final answer
    x = 145,970.26

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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.