Home / 269,129.80-403,692.67-69,433.21

Finding the Fourth Proportional to 269,129.80, 403,692.67 and 69,433.21

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Solution

The fourth proportional to 269,129.80, 403,692.67 and 69,433.21 is: 104,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,129.80 : 403,692.67 = 69,433.21 : x
  2. Step 2: Convert to fraction form
    269,129.80/403,692.67 = 69,433.21/x
  3. Step 3: Cross multiply
    269,129.80x = 403,692.67 × 69,433.21
  4. Step 4: Simplify right side
    269,129.80x = 28,029,677,931.57
  5. Step 5: Solve for x
    x = 28,029,677,931.57/269,129.80
  6. Step 6: Final answer
    x = 104,149.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.