Home / 120,711.21-166,579.16-66,996.87

Finding the Fourth Proportional to 120,711.21, 166,579.16 and 66,996.87

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Solution

The fourth proportional to 120,711.21, 166,579.16 and 66,996.87 is: 92,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,711.21 : 166,579.16 = 66,996.87 : x
  2. Step 2: Convert to fraction form
    120,711.21/166,579.16 = 66,996.87/x
  3. Step 3: Cross multiply
    120,711.21x = 166,579.16 × 66,996.87
  4. Step 4: Simplify right side
    120,711.21x = 11,160,282,327.23
  5. Step 5: Solve for x
    x = 11,160,282,327.23/120,711.21
  6. Step 6: Final answer
    x = 92,454.40

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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.