Home / 190,135.28-262,388.76-105,253.76

Finding the Fourth Proportional to 190,135.28, 262,388.76 and 105,253.76

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Solution

The fourth proportional to 190,135.28, 262,388.76 and 105,253.76 is: 145,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,135.28 : 262,388.76 = 105,253.76 : x
  2. Step 2: Convert to fraction form
    190,135.28/262,388.76 = 105,253.76/x
  3. Step 3: Cross multiply
    190,135.28x = 262,388.76 × 105,253.76
  4. Step 4: Simplify right side
    190,135.28x = 27,617,403,571.74
  5. Step 5: Solve for x
    x = 27,617,403,571.74/190,135.28
  6. Step 6: Final answer
    x = 145,251.34

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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.