Home / 190,438.12-285,559.26-111,707.56

Finding the Fourth Proportional to 190,438.12, 285,559.26 and 111,707.56

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Solution

The fourth proportional to 190,438.12, 285,559.26 and 111,707.56 is: 167,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,438.12 : 285,559.26 = 111,707.56 : x
  2. Step 2: Convert to fraction form
    190,438.12/285,559.26 = 111,707.56/x
  3. Step 3: Cross multiply
    190,438.12x = 285,559.26 × 111,707.56
  4. Step 4: Simplify right side
    190,438.12x = 31,899,128,170.01
  5. Step 5: Solve for x
    x = 31,899,128,170.01/190,438.12
  6. Step 6: Final answer
    x = 167,503.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.