Home / 188,406.15-259,995.06-107,830.94

Finding the Fourth Proportional to 188,406.15, 259,995.06 and 107,830.94

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Solution

The fourth proportional to 188,406.15, 259,995.06 and 107,830.94 is: 148,803.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,406.15 : 259,995.06 = 107,830.94 : x
  2. Step 2: Convert to fraction form
    188,406.15/259,995.06 = 107,830.94/x
  3. Step 3: Cross multiply
    188,406.15x = 259,995.06 × 107,830.94
  4. Step 4: Simplify right side
    188,406.15x = 28,035,510,415.18
  5. Step 5: Solve for x
    x = 28,035,510,415.18/188,406.15
  6. Step 6: Final answer
    x = 148,803.58

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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.