Home / 120,416.28-166,158.02-66,688.04

Finding the Fourth Proportional to 120,416.28, 166,158.02 and 66,688.04

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Solution

The fourth proportional to 120,416.28, 166,158.02 and 66,688.04 is: 92,020.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,416.28 : 166,158.02 = 66,688.04 : x
  2. Step 2: Convert to fraction form
    120,416.28/166,158.02 = 66,688.04/x
  3. Step 3: Cross multiply
    120,416.28x = 166,158.02 × 66,688.04
  4. Step 4: Simplify right side
    120,416.28x = 11,080,752,684.08
  5. Step 5: Solve for x
    x = 11,080,752,684.08/120,416.28
  6. Step 6: Final answer
    x = 92,020.39

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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.