Home / 190,615.63-263,049.83-105,732.69

Finding the Fourth Proportional to 190,615.63, 263,049.83 and 105,732.69

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Solution

The fourth proportional to 190,615.63, 263,049.83 and 105,732.69 is: 145,911.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,615.63 : 263,049.83 = 105,732.69 : x
  2. Step 2: Convert to fraction form
    190,615.63/263,049.83 = 105,732.69/x
  3. Step 3: Cross multiply
    190,615.63x = 263,049.83 × 105,732.69
  4. Step 4: Simplify right side
    190,615.63x = 27,812,966,129.94
  5. Step 5: Solve for x
    x = 27,812,966,129.94/190,615.63
  6. Step 6: Final answer
    x = 145,911.26

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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.