Home / 120,788.20-166,660.84-73,040.52

Finding the Fourth Proportional to 120,788.20, 166,660.84 and 73,040.52

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Solution

The fourth proportional to 120,788.20, 166,660.84 and 73,040.52 is: 100,779.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,788.20 : 166,660.84 = 73,040.52 : x
  2. Step 2: Convert to fraction form
    120,788.20/166,660.84 = 73,040.52/x
  3. Step 3: Cross multiply
    120,788.20x = 166,660.84 × 73,040.52
  4. Step 4: Simplify right side
    120,788.20x = 12,172,994,417.24
  5. Step 5: Solve for x
    x = 12,172,994,417.24/120,788.20
  6. Step 6: Final answer
    x = 100,779.67

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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.