Home / 120,734.19-166,620.92-69,749.06

Finding the Fourth Proportional to 120,734.19, 166,620.92 and 69,749.06

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Solution

The fourth proportional to 120,734.19, 166,620.92 and 69,749.06 is: 96,258.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,734.19 : 166,620.92 = 69,749.06 : x
  2. Step 2: Convert to fraction form
    120,734.19/166,620.92 = 69,749.06/x
  3. Step 3: Cross multiply
    120,734.19x = 166,620.92 × 69,749.06
  4. Step 4: Simplify right side
    120,734.19x = 11,621,651,364.49
  5. Step 5: Solve for x
    x = 11,621,651,364.49/120,734.19
  6. Step 6: Final answer
    x = 96,258.16

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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.