Home / 190,398.40-262,760.25-105,513.64

Finding the Fourth Proportional to 190,398.40, 262,760.25 and 105,513.64

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Solution

The fourth proportional to 190,398.40, 262,760.25 and 105,513.64 is: 145,614.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,398.40 : 262,760.25 = 105,513.64 : x
  2. Step 2: Convert to fraction form
    190,398.40/262,760.25 = 105,513.64/x
  3. Step 3: Cross multiply
    190,398.40x = 262,760.25 × 105,513.64
  4. Step 4: Simplify right side
    190,398.40x = 27,724,790,424.81
  5. Step 5: Solve for x
    x = 27,724,790,424.81/190,398.40
  6. Step 6: Final answer
    x = 145,614.62

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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.