Home / 120,464.28-166,245.03-72,708.30

Finding the Fourth Proportional to 120,464.28, 166,245.03 and 72,708.30

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Solution

The fourth proportional to 120,464.28, 166,245.03 and 72,708.30 is: 100,340.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,464.28 : 166,245.03 = 72,708.30 : x
  2. Step 2: Convert to fraction form
    120,464.28/166,245.03 = 72,708.30/x
  3. Step 3: Cross multiply
    120,464.28x = 166,245.03 × 72,708.30
  4. Step 4: Simplify right side
    120,464.28x = 12,087,393,514.75
  5. Step 5: Solve for x
    x = 12,087,393,514.75/120,464.28
  6. Step 6: Final answer
    x = 100,340.06

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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.