Home / 190,666.56-263,115.36-105,781.44

Finding the Fourth Proportional to 190,666.56, 263,115.36 and 105,781.44

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Solution

The fourth proportional to 190,666.56, 263,115.36 and 105,781.44 is: 145,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,666.56 : 263,115.36 = 105,781.44 : x
  2. Step 2: Convert to fraction form
    190,666.56/263,115.36 = 105,781.44/x
  3. Step 3: Cross multiply
    190,666.56x = 263,115.36 × 105,781.44
  4. Step 4: Simplify right side
    190,666.56x = 27,832,721,666.92
  5. Step 5: Solve for x
    x = 27,832,721,666.92/190,666.56
  6. Step 6: Final answer
    x = 145,975.89

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1.5x scale

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.