Home / 120,614.11-166,467.40-66,916.43

Finding the Fourth Proportional to 120,614.11, 166,467.40 and 66,916.43

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Solution

The fourth proportional to 120,614.11, 166,467.40 and 66,916.43 is: 92,355.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,614.11 : 166,467.40 = 66,916.43 : x
  2. Step 2: Convert to fraction form
    120,614.11/166,467.40 = 66,916.43/x
  3. Step 3: Cross multiply
    120,614.11x = 166,467.40 × 66,916.43
  4. Step 4: Simplify right side
    120,614.11x = 11,139,403,287.05
  5. Step 5: Solve for x
    x = 11,139,403,287.05/120,614.11
  6. Step 6: Final answer
    x = 92,355.72

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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.