Home / 120,422.07-166,180.37-66,705.95

Finding the Fourth Proportional to 120,422.07, 166,180.37 and 66,705.95

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Solution

The fourth proportional to 120,422.07, 166,180.37 and 66,705.95 is: 92,053.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,422.07 : 166,180.37 = 66,705.95 : x
  2. Step 2: Convert to fraction form
    120,422.07/166,180.37 = 66,705.95/x
  3. Step 3: Cross multiply
    120,422.07x = 166,180.37 × 66,705.95
  4. Step 4: Simplify right side
    120,422.07x = 11,085,219,118.67
  5. Step 5: Solve for x
    x = 11,085,219,118.67/120,422.07
  6. Step 6: Final answer
    x = 92,053.06

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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.