Home / 123,336.90-170,205.44-66,748.27

Finding the Fourth Proportional to 123,336.90, 170,205.44 and 66,748.27

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Solution

The fourth proportional to 123,336.90, 170,205.44 and 66,748.27 is: 92,112.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,336.90 : 170,205.44 = 66,748.27 : x
  2. Step 2: Convert to fraction form
    123,336.90/170,205.44 = 66,748.27/x
  3. Step 3: Cross multiply
    123,336.90x = 170,205.44 × 66,748.27
  4. Step 4: Simplify right side
    123,336.90x = 11,360,918,664.59
  5. Step 5: Solve for x
    x = 11,360,918,664.59/123,336.90
  6. Step 6: Final answer
    x = 92,112.89

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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.