Home / 120,394.36-166,144.12-66,679.32

Finding the Fourth Proportional to 120,394.36, 166,144.12 and 66,679.32

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Solution

The fourth proportional to 120,394.36, 166,144.12 and 66,679.32 is: 92,017.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,394.36 : 166,144.12 = 66,679.32 : x
  2. Step 2: Convert to fraction form
    120,394.36/166,144.12 = 66,679.32/x
  3. Step 3: Cross multiply
    120,394.36x = 166,144.12 × 66,679.32
  4. Step 4: Simplify right side
    120,394.36x = 11,078,376,943.60
  5. Step 5: Solve for x
    x = 11,078,376,943.60/120,394.36
  6. Step 6: Final answer
    x = 92,017.41

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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.