Home / 120,419.51-166,180.23-66,705.39

Finding the Fourth Proportional to 120,419.51, 166,180.23 and 66,705.39

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Solution

The fourth proportional to 120,419.51, 166,180.23 and 66,705.39 is: 92,054.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,419.51 : 166,180.23 = 66,705.39 : x
  2. Step 2: Convert to fraction form
    120,419.51/166,180.23 = 66,705.39/x
  3. Step 3: Cross multiply
    120,419.51x = 166,180.23 × 66,705.39
  4. Step 4: Simplify right side
    120,419.51x = 11,085,117,052.44
  5. Step 5: Solve for x
    x = 11,085,117,052.44/120,419.51
  6. Step 6: Final answer
    x = 92,054.17

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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.