Home / 120,328.64-166,055.84-66,612.12

Finding the Fourth Proportional to 120,328.64, 166,055.84 and 66,612.12

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Solution

The fourth proportional to 120,328.64, 166,055.84 and 66,612.12 is: 91,926.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,328.64 : 166,055.84 = 66,612.12 : x
  2. Step 2: Convert to fraction form
    120,328.64/166,055.84 = 66,612.12/x
  3. Step 3: Cross multiply
    120,328.64x = 166,055.84 × 66,612.12
  4. Step 4: Simplify right side
    120,328.64x = 11,061,331,540.78
  5. Step 5: Solve for x
    x = 11,061,331,540.78/120,328.64
  6. Step 6: Final answer
    x = 91,926.01

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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.