Home / 190,198.83-262,471.18-105,314.07

Finding the Fourth Proportional to 190,198.83, 262,471.18 and 105,314.07

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Solution

The fourth proportional to 190,198.83, 262,471.18 and 105,314.07 is: 145,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,198.83 : 262,471.18 = 105,314.07 : x
  2. Step 2: Convert to fraction form
    190,198.83/262,471.18 = 105,314.07/x
  3. Step 3: Cross multiply
    190,198.83x = 262,471.18 × 105,314.07
  4. Step 4: Simplify right side
    190,198.83x = 27,641,908,223.50
  5. Step 5: Solve for x
    x = 27,641,908,223.50/190,198.83
  6. Step 6: Final answer
    x = 145,331.64

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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.