Home / 120,829.58-166,742.25-67,113.62

Finding the Fourth Proportional to 120,829.58, 166,742.25 and 67,113.62

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Solution

The fourth proportional to 120,829.58, 166,742.25 and 67,113.62 is: 92,615.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,829.58 : 166,742.25 = 67,113.62 : x
  2. Step 2: Convert to fraction form
    120,829.58/166,742.25 = 67,113.62/x
  3. Step 3: Cross multiply
    120,829.58x = 166,742.25 × 67,113.62
  4. Step 4: Simplify right side
    120,829.58x = 11,190,676,004.45
  5. Step 5: Solve for x
    x = 11,190,676,004.45/120,829.58
  6. Step 6: Final answer
    x = 92,615.37

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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.