Home / 120,823.62-166,742.16-67,108.86

Finding the Fourth Proportional to 120,823.62, 166,742.16 and 67,108.86

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Solution

The fourth proportional to 120,823.62, 166,742.16 and 67,108.86 is: 92,613.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,823.62 : 166,742.16 = 67,108.86 : x
  2. Step 2: Convert to fraction form
    120,823.62/166,742.16 = 67,108.86/x
  3. Step 3: Cross multiply
    120,823.62x = 166,742.16 × 67,108.86
  4. Step 4: Simplify right side
    120,823.62x = 11,189,876,271.54
  5. Step 5: Solve for x
    x = 11,189,876,271.54/120,823.62
  6. Step 6: Final answer
    x = 92,613.32

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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.