Home / 120,483.18-166,269.78-66,768.84

Finding the Fourth Proportional to 120,483.18, 166,269.78 and 66,768.84

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Solution

The fourth proportional to 120,483.18, 166,269.78 and 66,768.84 is: 92,142.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,483.18 : 166,269.78 = 66,768.84 : x
  2. Step 2: Convert to fraction form
    120,483.18/166,269.78 = 66,768.84/x
  3. Step 3: Cross multiply
    120,483.18x = 166,269.78 × 66,768.84
  4. Step 4: Simplify right side
    120,483.18x = 11,101,640,337.66
  5. Step 5: Solve for x
    x = 11,101,640,337.66/120,483.18
  6. Step 6: Final answer
    x = 92,142.66

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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.