Home / 120,954.72-166,476.84-106,520.16

Finding the Fourth Proportional to 120,954.72, 166,476.84 and 106,520.16

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Solution

The fourth proportional to 120,954.72, 166,476.84 and 106,520.16 is: 146,609.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,954.72 : 166,476.84 = 106,520.16 : x
  2. Step 2: Convert to fraction form
    120,954.72/166,476.84 = 106,520.16/x
  3. Step 3: Cross multiply
    120,954.72x = 166,476.84 × 106,520.16
  4. Step 4: Simplify right side
    120,954.72x = 17,733,139,633.09
  5. Step 5: Solve for x
    x = 17,733,139,633.09/120,954.72
  6. Step 6: Final answer
    x = 146,609.74

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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.