Home / 120,620.18-166,458.51-66,903.44

Finding the Fourth Proportional to 120,620.18, 166,458.51 and 66,903.44

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Solution

The fourth proportional to 120,620.18, 166,458.51 and 66,903.44 is: 92,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,620.18 : 166,458.51 = 66,903.44 : x
  2. Step 2: Convert to fraction form
    120,620.18/166,458.51 = 66,903.44/x
  3. Step 3: Cross multiply
    120,620.18x = 166,458.51 × 66,903.44
  4. Step 4: Simplify right side
    120,620.18x = 11,136,646,936.27
  5. Step 5: Solve for x
    x = 11,136,646,936.27/120,620.18
  6. Step 6: Final answer
    x = 92,328.22

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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.