Home / 190,538.15-262,923.70-109,991.62

Finding the Fourth Proportional to 190,538.15, 262,923.70 and 109,991.62

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Solution

The fourth proportional to 190,538.15, 262,923.70 and 109,991.62 is: 151,777.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,538.15 : 262,923.70 = 109,991.62 : x
  2. Step 2: Convert to fraction form
    190,538.15/262,923.70 = 109,991.62/x
  3. Step 3: Cross multiply
    190,538.15x = 262,923.70 × 109,991.62
  4. Step 4: Simplify right side
    190,538.15x = 28,919,403,753.07
  5. Step 5: Solve for x
    x = 28,919,403,753.07/190,538.15
  6. Step 6: Final answer
    x = 151,777.50

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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.