Home / 209,811.87-289,536.74-114,319.35

Finding the Fourth Proportional to 209,811.87, 289,536.74 and 114,319.35

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Solution

The fourth proportional to 209,811.87, 289,536.74 and 114,319.35 is: 157,758.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,811.87 : 289,536.74 = 114,319.35 : x
  2. Step 2: Convert to fraction form
    209,811.87/289,536.74 = 114,319.35/x
  3. Step 3: Cross multiply
    209,811.87x = 289,536.74 × 114,319.35
  4. Step 4: Simplify right side
    209,811.87x = 33,099,651,346.32
  5. Step 5: Solve for x
    x = 33,099,651,346.32/209,811.87
  6. Step 6: Final answer
    x = 157,758.72

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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.