Home / 120,977.79-166,939.85-67,259.54

Finding the Fourth Proportional to 120,977.79, 166,939.85 and 67,259.54

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Solution

The fourth proportional to 120,977.79, 166,939.85 and 67,259.54 is: 92,812.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,977.79 : 166,939.85 = 67,259.54 : x
  2. Step 2: Convert to fraction form
    120,977.79/166,939.85 = 67,259.54/x
  3. Step 3: Cross multiply
    120,977.79x = 166,939.85 × 67,259.54
  4. Step 4: Simplify right side
    120,977.79x = 11,228,296,852.12
  5. Step 5: Solve for x
    x = 11,228,296,852.12/120,977.79
  6. Step 6: Final answer
    x = 92,812.88

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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.