Home / 120,829.23-166,742.10-67,113.72

Finding the Fourth Proportional to 120,829.23, 166,742.10 and 67,113.72

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Solution

The fourth proportional to 120,829.23, 166,742.10 and 67,113.72 is: 92,615.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,829.23 : 166,742.10 = 67,113.72 : x
  2. Step 2: Convert to fraction form
    120,829.23/166,742.10 = 67,113.72/x
  3. Step 3: Cross multiply
    120,829.23x = 166,742.10 × 67,113.72
  4. Step 4: Simplify right side
    120,829.23x = 11,190,682,611.61
  5. Step 5: Solve for x
    x = 11,190,682,611.61/120,829.23
  6. Step 6: Final answer
    x = 92,615.69

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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.