Home / 190,293.81-262,604.75-105,409.05

Finding the Fourth Proportional to 190,293.81, 262,604.75 and 105,409.05

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Solution

The fourth proportional to 190,293.81, 262,604.75 and 105,409.05 is: 145,464.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,293.81 : 262,604.75 = 105,409.05 : x
  2. Step 2: Convert to fraction form
    190,293.81/262,604.75 = 105,409.05/x
  3. Step 3: Cross multiply
    190,293.81x = 262,604.75 × 105,409.05
  4. Step 4: Simplify right side
    190,293.81x = 27,680,916,695.94
  5. Step 5: Solve for x
    x = 27,680,916,695.94/190,293.81
  6. Step 6: Final answer
    x = 145,464.09

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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.