Home / 188,910.63-260,628.20-107,191.56

Finding the Fourth Proportional to 188,910.63, 260,628.20 and 107,191.56

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Solution

The fourth proportional to 188,910.63, 260,628.20 and 107,191.56 is: 147,885.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,910.63 : 260,628.20 = 107,191.56 : x
  2. Step 2: Convert to fraction form
    188,910.63/260,628.20 = 107,191.56/x
  3. Step 3: Cross multiply
    188,910.63x = 260,628.20 × 107,191.56
  4. Step 4: Simplify right side
    188,910.63x = 27,937,142,802.03
  5. Step 5: Solve for x
    x = 27,937,142,802.03/188,910.63
  6. Step 6: Final answer
    x = 147,885.50

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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.