Home / 120,686.22-166,544.46-66,970.80

Finding the Fourth Proportional to 120,686.22, 166,544.46 and 66,970.80

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Solution

The fourth proportional to 120,686.22, 166,544.46 and 66,970.80 is: 92,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,686.22 : 166,544.46 = 66,970.80 : x
  2. Step 2: Convert to fraction form
    120,686.22/166,544.46 = 66,970.80/x
  3. Step 3: Cross multiply
    120,686.22x = 166,544.46 × 66,970.80
  4. Step 4: Simplify right side
    120,686.22x = 11,153,615,721.77
  5. Step 5: Solve for x
    x = 11,153,615,721.77/120,686.22
  6. Step 6: Final answer
    x = 92,418.30

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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.