Home / 200,515.16-276,692.54-115,615.82

Finding the Fourth Proportional to 200,515.16, 276,692.54 and 115,615.82

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Solution

The fourth proportional to 200,515.16, 276,692.54 and 115,615.82 is: 159,539.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,515.16 : 276,692.54 = 115,615.82 : x
  2. Step 2: Convert to fraction form
    200,515.16/276,692.54 = 115,615.82/x
  3. Step 3: Cross multiply
    200,515.16x = 276,692.54 × 115,615.82
  4. Step 4: Simplify right side
    200,515.16x = 31,990,034,899.98
  5. Step 5: Solve for x
    x = 31,990,034,899.98/200,515.16
  6. Step 6: Final answer
    x = 159,539.23

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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.