Home / 190,198.28-262,473.62-105,315.32

Finding the Fourth Proportional to 190,198.28, 262,473.62 and 105,315.32

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Solution

The fourth proportional to 190,198.28, 262,473.62 and 105,315.32 is: 145,335.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,198.28 : 262,473.62 = 105,315.32 : x
  2. Step 2: Convert to fraction form
    190,198.28/262,473.62 = 105,315.32/x
  3. Step 3: Cross multiply
    190,198.28x = 262,473.62 × 105,315.32
  4. Step 4: Simplify right side
    190,198.28x = 27,642,493,281.86
  5. Step 5: Solve for x
    x = 27,642,493,281.86/190,198.28
  6. Step 6: Final answer
    x = 145,335.14

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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.