Home / 188,109.12-259,598.07-103,229.22

Finding the Fourth Proportional to 188,109.12, 259,598.07 and 103,229.22

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Solution

The fourth proportional to 188,109.12, 259,598.07 and 103,229.22 is: 142,460.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,109.12 : 259,598.07 = 103,229.22 : x
  2. Step 2: Convert to fraction form
    188,109.12/259,598.07 = 103,229.22/x
  3. Step 3: Cross multiply
    188,109.12x = 259,598.07 × 103,229.22
  4. Step 4: Simplify right side
    188,109.12x = 26,798,106,279.61
  5. Step 5: Solve for x
    x = 26,798,106,279.61/188,109.12
  6. Step 6: Final answer
    x = 142,460.43

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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.