Home / 136,438.88-204,280.44-69,735.36

Finding the Fourth Proportional to 136,438.88, 204,280.44 and 69,735.36

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Solution

The fourth proportional to 136,438.88, 204,280.44 and 69,735.36 is: 104,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,438.88 : 204,280.44 = 69,735.36 : x
  2. Step 2: Convert to fraction form
    136,438.88/204,280.44 = 69,735.36/x
  3. Step 3: Cross multiply
    136,438.88x = 204,280.44 × 69,735.36
  4. Step 4: Simplify right side
    136,438.88x = 14,245,570,024.36
  5. Step 5: Solve for x
    x = 14,245,570,024.36/136,438.88
  6. Step 6: Final answer
    x = 104,409.90

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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.