Home / 120,826.20-166,740.18-67,116.22

Finding the Fourth Proportional to 120,826.20, 166,740.18 and 67,116.22

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Solution

The fourth proportional to 120,826.20, 166,740.18 and 67,116.22 is: 92,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,826.20 : 166,740.18 = 67,116.22 : x
  2. Step 2: Convert to fraction form
    120,826.20/166,740.18 = 67,116.22/x
  3. Step 3: Cross multiply
    120,826.20x = 166,740.18 × 67,116.22
  4. Step 4: Simplify right side
    120,826.20x = 11,190,970,603.72
  5. Step 5: Solve for x
    x = 11,190,970,603.72/120,826.20
  6. Step 6: Final answer
    x = 92,620.40

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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.