Home / 190,633.02-263,069.55-105,749.34

Finding the Fourth Proportional to 190,633.02, 263,069.55 and 105,749.34

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Solution

The fourth proportional to 190,633.02, 263,069.55 and 105,749.34 is: 145,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,633.02 : 263,069.55 = 105,749.34 : x
  2. Step 2: Convert to fraction form
    190,633.02/263,069.55 = 105,749.34/x
  3. Step 3: Cross multiply
    190,633.02x = 263,069.55 × 105,749.34
  4. Step 4: Simplify right side
    190,633.02x = 27,819,431,286.60
  5. Step 5: Solve for x
    x = 27,819,431,286.60/190,633.02
  6. Step 6: Final answer
    x = 145,931.86

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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.