Home / 120,800.09-166,709.66-67,085.35

Finding the Fourth Proportional to 120,800.09, 166,709.66 and 67,085.35

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Solution

The fourth proportional to 120,800.09, 166,709.66 and 67,085.35 is: 92,580.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,800.09 : 166,709.66 = 67,085.35 : x
  2. Step 2: Convert to fraction form
    120,800.09/166,709.66 = 67,085.35/x
  3. Step 3: Cross multiply
    120,800.09x = 166,709.66 × 67,085.35
  4. Step 4: Simplify right side
    120,800.09x = 11,183,775,640.42
  5. Step 5: Solve for x
    x = 11,183,775,640.42/120,800.09
  6. Step 6: Final answer
    x = 92,580.85

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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.