Home / 120,364.22-166,100.58-66,648.08

Finding the Fourth Proportional to 120,364.22, 166,100.58 and 66,648.08

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Solution

The fourth proportional to 120,364.22, 166,100.58 and 66,648.08 is: 91,973.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,364.22 : 166,100.58 = 66,648.08 : x
  2. Step 2: Convert to fraction form
    120,364.22/166,100.58 = 66,648.08/x
  3. Step 3: Cross multiply
    120,364.22x = 166,100.58 × 66,648.08
  4. Step 4: Simplify right side
    120,364.22x = 11,070,284,743.89
  5. Step 5: Solve for x
    x = 11,070,284,743.89/120,364.22
  6. Step 6: Final answer
    x = 91,973.22

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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.