Home / 190,381.96-262,728.66-105,500.44

Finding the Fourth Proportional to 190,381.96, 262,728.66 and 105,500.44

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Solution

The fourth proportional to 190,381.96, 262,728.66 and 105,500.44 is: 145,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,381.96 : 262,728.66 = 105,500.44 : x
  2. Step 2: Convert to fraction form
    190,381.96/262,728.66 = 105,500.44/x
  3. Step 3: Cross multiply
    190,381.96x = 262,728.66 × 105,500.44
  4. Step 4: Simplify right side
    190,381.96x = 27,717,989,230.61
  5. Step 5: Solve for x
    x = 27,717,989,230.61/190,381.96
  6. Step 6: Final answer
    x = 145,591.47

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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.