Home / 188,859.09-260,640.27-103,991.34

Finding the Fourth Proportional to 188,859.09, 260,640.27 and 103,991.34

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Solution

The fourth proportional to 188,859.09, 260,640.27 and 103,991.34 is: 143,516.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,859.09 : 260,640.27 = 103,991.34 : x
  2. Step 2: Convert to fraction form
    188,859.09/260,640.27 = 103,991.34/x
  3. Step 3: Cross multiply
    188,859.09x = 260,640.27 × 103,991.34
  4. Step 4: Simplify right side
    188,859.09x = 27,104,330,935.26
  5. Step 5: Solve for x
    x = 27,104,330,935.26/188,859.09
  6. Step 6: Final answer
    x = 143,516.16

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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.