Home / 120,899.64-166,845.55-67,186.92

Finding the Fourth Proportional to 120,899.64, 166,845.55 and 67,186.92

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Solution

The fourth proportional to 120,899.64, 166,845.55 and 67,186.92 is: 92,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,899.64 : 166,845.55 = 67,186.92 : x
  2. Step 2: Convert to fraction form
    120,899.64/166,845.55 = 67,186.92/x
  3. Step 3: Cross multiply
    120,899.64x = 166,845.55 × 67,186.92
  4. Step 4: Simplify right side
    120,899.64x = 11,209,838,076.42
  5. Step 5: Solve for x
    x = 11,209,838,076.42/120,899.64
  6. Step 6: Final answer
    x = 92,720.20

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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.