Home / 110,830.08-166,245.12-85,920.96

Finding the Fourth Proportional to 110,830.08, 166,245.12 and 85,920.96

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Solution

The fourth proportional to 110,830.08, 166,245.12 and 85,920.96 is: 128,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,830.08 : 166,245.12 = 85,920.96 : x
  2. Step 2: Convert to fraction form
    110,830.08/166,245.12 = 85,920.96/x
  3. Step 3: Cross multiply
    110,830.08x = 166,245.12 × 85,920.96
  4. Step 4: Simplify right side
    110,830.08x = 14,283,940,305.72
  5. Step 5: Solve for x
    x = 14,283,940,305.72/110,830.08
  6. Step 6: Final answer
    x = 128,881.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.