Home / 109,847.36-164,771.88-71,928.56

Finding the Fourth Proportional to 109,847.36, 164,771.88 and 71,928.56

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Solution

The fourth proportional to 109,847.36, 164,771.88 and 71,928.56 is: 107,893.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,847.36 : 164,771.88 = 71,928.56 : x
  2. Step 2: Convert to fraction form
    109,847.36/164,771.88 = 71,928.56/x
  3. Step 3: Cross multiply
    109,847.36x = 164,771.88 × 71,928.56
  4. Step 4: Simplify right side
    109,847.36x = 11,851,804,056.89
  5. Step 5: Solve for x
    x = 11,851,804,056.89/109,847.36
  6. Step 6: Final answer
    x = 107,893.39

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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.