Home / 120,183.67-165,840.78-66,460.15

Finding the Fourth Proportional to 120,183.67, 165,840.78 and 66,460.15

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Solution

The fourth proportional to 120,183.67, 165,840.78 and 66,460.15 is: 91,707.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,183.67 : 165,840.78 = 66,460.15 : x
  2. Step 2: Convert to fraction form
    120,183.67/165,840.78 = 66,460.15/x
  3. Step 3: Cross multiply
    120,183.67x = 165,840.78 × 66,460.15
  4. Step 4: Simplify right side
    120,183.67x = 11,021,803,114.92
  5. Step 5: Solve for x
    x = 11,021,803,114.92/120,183.67
  6. Step 6: Final answer
    x = 91,707.99

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1.5x scale

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.