Home / 209,613.43-289,266.57-114,120.13

Finding the Fourth Proportional to 209,613.43, 289,266.57 and 114,120.13

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Solution

The fourth proportional to 209,613.43, 289,266.57 and 114,120.13 is: 157,485.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,613.43 : 289,266.57 = 114,120.13 : x
  2. Step 2: Convert to fraction form
    209,613.43/289,266.57 = 114,120.13/x
  3. Step 3: Cross multiply
    209,613.43x = 289,266.57 × 114,120.13
  4. Step 4: Simplify right side
    209,613.43x = 33,011,136,556.12
  5. Step 5: Solve for x
    x = 33,011,136,556.12/209,613.43
  6. Step 6: Final answer
    x = 157,485.79

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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.