Home / 190,453-262,825.38-105,582.76

Finding the Fourth Proportional to 190,453, 262,825.38 and 105,582.76

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Solution

The fourth proportional to 190,453, 262,825.38 and 105,582.76 is: 145,704.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,453 : 262,825.38 = 105,582.76 : x
  2. Step 2: Convert to fraction form
    190,453/262,825.38 = 105,582.76/x
  3. Step 3: Cross multiply
    190,453x = 262,825.38 × 105,582.76
  4. Step 4: Simplify right side
    190,453x = 27,749,829,018.45
  5. Step 5: Solve for x
    x = 27,749,829,018.45/190,453
  6. Step 6: Final answer
    x = 145,704.34

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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.