Home / 209,620.17-289,277.19-114,127.92

Finding the Fourth Proportional to 209,620.17, 289,277.19 and 114,127.92

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Solution

The fourth proportional to 209,620.17, 289,277.19 and 114,127.92 is: 157,497.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,620.17 : 289,277.19 = 114,127.92 : x
  2. Step 2: Convert to fraction form
    209,620.17/289,277.19 = 114,127.92/x
  3. Step 3: Cross multiply
    209,620.17x = 289,277.19 × 114,127.92
  4. Step 4: Simplify right side
    209,620.17x = 33,014,603,998.14
  5. Step 5: Solve for x
    x = 33,014,603,998.14/209,620.17
  6. Step 6: Final answer
    x = 157,497.27

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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.