Home / 190,128.57-262,359.21-113,632.43

Finding the Fourth Proportional to 190,128.57, 262,359.21 and 113,632.43

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Solution

The fourth proportional to 190,128.57, 262,359.21 and 113,632.43 is: 156,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,128.57 : 262,359.21 = 113,632.43 : x
  2. Step 2: Convert to fraction form
    190,128.57/262,359.21 = 113,632.43/x
  3. Step 3: Cross multiply
    190,128.57x = 262,359.21 × 113,632.43
  4. Step 4: Simplify right side
    190,128.57x = 29,812,515,221.08
  5. Step 5: Solve for x
    x = 29,812,515,221.08/190,128.57
  6. Step 6: Final answer
    x = 156,801.87

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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.