Home / 190,440.56-262,803.72-105,556.88

Finding the Fourth Proportional to 190,440.56, 262,803.72 and 105,556.88

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Solution

The fourth proportional to 190,440.56, 262,803.72 and 105,556.88 is: 145,666.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,440.56 : 262,803.72 = 105,556.88 : x
  2. Step 2: Convert to fraction form
    190,440.56/262,803.72 = 105,556.88/x
  3. Step 3: Cross multiply
    190,440.56x = 262,803.72 × 105,556.88
  4. Step 4: Simplify right side
    190,440.56x = 27,740,740,735.59
  5. Step 5: Solve for x
    x = 27,740,740,735.59/190,440.56
  6. Step 6: Final answer
    x = 145,666.14

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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.