Home / 190,438.56-262,800.96-105,554.88

Finding the Fourth Proportional to 190,438.56, 262,800.96 and 105,554.88

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Solution

The fourth proportional to 190,438.56, 262,800.96 and 105,554.88 is: 145,663.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,438.56 : 262,800.96 = 105,554.88 : x
  2. Step 2: Convert to fraction form
    190,438.56/262,800.96 = 105,554.88/x
  3. Step 3: Cross multiply
    190,438.56x = 262,800.96 × 105,554.88
  4. Step 4: Simplify right side
    190,438.56x = 27,739,923,796.68
  5. Step 5: Solve for x
    x = 27,739,923,796.68/190,438.56
  6. Step 6: Final answer
    x = 145,663.38

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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.