Home / 190,529.20-262,917.48-105,643.12

Finding the Fourth Proportional to 190,529.20, 262,917.48 and 105,643.12

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Solution

The fourth proportional to 190,529.20, 262,917.48 and 105,643.12 is: 145,780.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,529.20 : 262,917.48 = 105,643.12 : x
  2. Step 2: Convert to fraction form
    190,529.20/262,917.48 = 105,643.12/x
  3. Step 3: Cross multiply
    190,529.20x = 262,917.48 × 105,643.12
  4. Step 4: Simplify right side
    190,529.20x = 27,775,422,889.74
  5. Step 5: Solve for x
    x = 27,775,422,889.74/190,529.20
  6. Step 6: Final answer
    x = 145,780.40

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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.