Home / 120,431.26-166,204.50-66,721.24

Finding the Fourth Proportional to 120,431.26, 166,204.50 and 66,721.24

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Solution

The fourth proportional to 120,431.26, 166,204.50 and 66,721.24 is: 92,080.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,431.26 : 166,204.50 = 66,721.24 : x
  2. Step 2: Convert to fraction form
    120,431.26/166,204.50 = 66,721.24/x
  3. Step 3: Cross multiply
    120,431.26x = 166,204.50 × 66,721.24
  4. Step 4: Simplify right side
    120,431.26x = 11,089,370,333.58
  5. Step 5: Solve for x
    x = 11,089,370,333.58/120,431.26
  6. Step 6: Final answer
    x = 92,080.50

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1.5x scale

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.