Home / 136,406.80-204,517.64-47,611.76

Finding the Fourth Proportional to 136,406.80, 204,517.64 and 47,611.76

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Solution

The fourth proportional to 136,406.80, 204,517.64 and 47,611.76 is: 71,385.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,406.80 : 204,517.64 = 47,611.76 : x
  2. Step 2: Convert to fraction form
    136,406.80/204,517.64 = 47,611.76/x
  3. Step 3: Cross multiply
    136,406.80x = 204,517.64 × 47,611.76
  4. Step 4: Simplify right side
    136,406.80x = 9,737,444,791.45
  5. Step 5: Solve for x
    x = 9,737,444,791.45/136,406.80
  6. Step 6: Final answer
    x = 71,385.33

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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.