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Finding the Fourth Proportional to 156,676.68, 216,066.96 and 120,809.88

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Solution

The fourth proportional to 156,676.68, 216,066.96 and 120,809.88 is: 166,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,676.68 : 216,066.96 = 120,809.88 : x
  2. Step 2: Convert to fraction form
    156,676.68/216,066.96 = 120,809.88/x
  3. Step 3: Cross multiply
    156,676.68x = 216,066.96 × 120,809.88
  4. Step 4: Simplify right side
    156,676.68x = 26,103,023,509.56
  5. Step 5: Solve for x
    x = 26,103,023,509.56/156,676.68
  6. Step 6: Final answer
    x = 166,604.40

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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.