Home / 120,706.72-181,355.28-113,992.60

Finding the Fourth Proportional to 120,706.72, 181,355.28 and 113,992.60

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Solution

The fourth proportional to 120,706.72, 181,355.28 and 113,992.60 is: 171,267.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,706.72 : 181,355.28 = 113,992.60 : x
  2. Step 2: Convert to fraction form
    120,706.72/181,355.28 = 113,992.60/x
  3. Step 3: Cross multiply
    120,706.72x = 181,355.28 × 113,992.60
  4. Step 4: Simplify right side
    120,706.72x = 20,673,159,890.93
  5. Step 5: Solve for x
    x = 20,673,159,890.93/120,706.72
  6. Step 6: Final answer
    x = 171,267.68

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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.