Home / 188,568.63-260,213.85-103,685.76

Finding the Fourth Proportional to 188,568.63, 260,213.85 and 103,685.76

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Solution

The fourth proportional to 188,568.63, 260,213.85 and 103,685.76 is: 143,080.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,568.63 : 260,213.85 = 103,685.76 : x
  2. Step 2: Convert to fraction form
    188,568.63/260,213.85 = 103,685.76/x
  3. Step 3: Cross multiply
    188,568.63x = 260,213.85 × 103,685.76
  4. Step 4: Simplify right side
    188,568.63x = 26,980,470,799.78
  5. Step 5: Solve for x
    x = 26,980,470,799.78/188,568.63
  6. Step 6: Final answer
    x = 143,080.38

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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.