Home / 190,147.20-262,430.80-109,559.12

Finding the Fourth Proportional to 190,147.20, 262,430.80 and 109,559.12

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Solution

The fourth proportional to 190,147.20, 262,430.80 and 109,559.12 is: 151,207.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,147.20 : 262,430.80 = 109,559.12 : x
  2. Step 2: Convert to fraction form
    190,147.20/262,430.80 = 109,559.12/x
  3. Step 3: Cross multiply
    190,147.20x = 262,430.80 × 109,559.12
  4. Step 4: Simplify right side
    190,147.20x = 28,751,687,508.90
  5. Step 5: Solve for x
    x = 28,751,687,508.90/190,147.20
  6. Step 6: Final answer
    x = 151,207.53

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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.