Home / 120,461.92-166,245.52-66,749.28

Finding the Fourth Proportional to 120,461.92, 166,245.52 and 66,749.28

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Solution

The fourth proportional to 120,461.92, 166,245.52 and 66,749.28 is: 92,118.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,461.92 : 166,245.52 = 66,749.28 : x
  2. Step 2: Convert to fraction form
    120,461.92/166,245.52 = 66,749.28/x
  3. Step 3: Cross multiply
    120,461.92x = 166,245.52 × 66,749.28
  4. Step 4: Simplify right side
    120,461.92x = 11,096,768,763.23
  5. Step 5: Solve for x
    x = 11,096,768,763.23/120,461.92
  6. Step 6: Final answer
    x = 92,118.48

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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.