Home / 120,780.75-166,697.94-69,823.02

Finding the Fourth Proportional to 120,780.75, 166,697.94 and 69,823.02

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Solution

The fourth proportional to 120,780.75, 166,697.94 and 69,823.02 is: 96,367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,780.75 : 166,697.94 = 69,823.02 : x
  2. Step 2: Convert to fraction form
    120,780.75/166,697.94 = 69,823.02/x
  3. Step 3: Cross multiply
    120,780.75x = 166,697.94 × 69,823.02
  4. Step 4: Simplify right side
    120,780.75x = 11,639,353,598.58
  5. Step 5: Solve for x
    x = 11,639,353,598.58/120,780.75
  6. Step 6: Final answer
    x = 96,367.62

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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.