Home / 120,690.24-180,992.16-41,783.28

Finding the Fourth Proportional to 120,690.24, 180,992.16 and 41,783.28

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Solution

The fourth proportional to 120,690.24, 180,992.16 and 41,783.28 is: 62,659.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,690.24 : 180,992.16 = 41,783.28 : x
  2. Step 2: Convert to fraction form
    120,690.24/180,992.16 = 41,783.28/x
  3. Step 3: Cross multiply
    120,690.24x = 180,992.16 × 41,783.28
  4. Step 4: Simplify right side
    120,690.24x = 7,562,446,099.08
  5. Step 5: Solve for x
    x = 7,562,446,099.08/120,690.24
  6. Step 6: Final answer
    x = 62,659.96

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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.