Home / 120,603.12-166,442.53-66,905.44

Finding the Fourth Proportional to 120,603.12, 166,442.53 and 66,905.44

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Solution

The fourth proportional to 120,603.12, 166,442.53 and 66,905.44 is: 92,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,603.12 : 166,442.53 = 66,905.44 : x
  2. Step 2: Convert to fraction form
    120,603.12/166,442.53 = 66,905.44/x
  3. Step 3: Cross multiply
    120,603.12x = 166,442.53 × 66,905.44
  4. Step 4: Simplify right side
    120,603.12x = 11,135,910,246.44
  5. Step 5: Solve for x
    x = 11,135,910,246.44/120,603.12
  6. Step 6: Final answer
    x = 92,335.17

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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.