Home / 120,308.35-166,043.32-69,311.39

Finding the Fourth Proportional to 120,308.35, 166,043.32 and 69,311.39

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Solution

The fourth proportional to 120,308.35, 166,043.32 and 69,311.39 is: 95,659.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,308.35 : 166,043.32 = 69,311.39 : x
  2. Step 2: Convert to fraction form
    120,308.35/166,043.32 = 69,311.39/x
  3. Step 3: Cross multiply
    120,308.35x = 166,043.32 × 69,311.39
  4. Step 4: Simplify right side
    120,308.35x = 11,508,692,479.20
  5. Step 5: Solve for x
    x = 11,508,692,479.20/120,308.35
  6. Step 6: Final answer
    x = 95,659.96

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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.