Home / 206,172.90-309,378.24-111,403.26

Finding the Fourth Proportional to 206,172.90, 309,378.24 and 111,403.26

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Solution

The fourth proportional to 206,172.90, 309,378.24 and 111,403.26 is: 167,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,172.90 : 309,378.24 = 111,403.26 : x
  2. Step 2: Convert to fraction form
    206,172.90/309,378.24 = 111,403.26/x
  3. Step 3: Cross multiply
    206,172.90x = 309,378.24 × 111,403.26
  4. Step 4: Simplify right side
    206,172.90x = 34,465,744,509.06
  5. Step 5: Solve for x
    x = 34,465,744,509.06/206,172.90
  6. Step 6: Final answer
    x = 167,169.13

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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.