Home / 149,245.63-205,962.66-81,266.33

Finding the Fourth Proportional to 149,245.63, 205,962.66 and 81,266.33

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Solution

The fourth proportional to 149,245.63, 205,962.66 and 81,266.33 is: 112,149.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,245.63 : 205,962.66 = 81,266.33 : x
  2. Step 2: Convert to fraction form
    149,245.63/205,962.66 = 81,266.33/x
  3. Step 3: Cross multiply
    149,245.63x = 205,962.66 × 81,266.33
  4. Step 4: Simplify right side
    149,245.63x = 16,737,828,059.09
  5. Step 5: Solve for x
    x = 16,737,828,059.09/149,245.63
  6. Step 6: Final answer
    x = 112,149.54

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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.