Home / 120,826.08-166,672.78-112,273.20

Finding the Fourth Proportional to 120,826.08, 166,672.78 and 112,273.20

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Solution

The fourth proportional to 120,826.08, 166,672.78 and 112,273.20 is: 154,874.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,826.08 : 166,672.78 = 112,273.20 : x
  2. Step 2: Convert to fraction form
    120,826.08/166,672.78 = 112,273.20/x
  3. Step 3: Cross multiply
    120,826.08x = 166,672.78 × 112,273.20
  4. Step 4: Simplify right side
    120,826.08x = 18,712,886,363.50
  5. Step 5: Solve for x
    x = 18,712,886,363.50/120,826.08
  6. Step 6: Final answer
    x = 154,874.56

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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.