Home / 120,618.32-166,464.48-69,632.72

Finding the Fourth Proportional to 120,618.32, 166,464.48 and 69,632.72

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Solution

The fourth proportional to 120,618.32, 166,464.48 and 69,632.72 is: 96,099.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,618.32 : 166,464.48 = 69,632.72 : x
  2. Step 2: Convert to fraction form
    120,618.32/166,464.48 = 69,632.72/x
  3. Step 3: Cross multiply
    120,618.32x = 166,464.48 × 69,632.72
  4. Step 4: Simplify right side
    120,618.32x = 11,591,374,525.79
  5. Step 5: Solve for x
    x = 11,591,374,525.79/120,618.32
  6. Step 6: Final answer
    x = 96,099.62

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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.