Home / 120,613.08-166,445.98-66,906.20

Finding the Fourth Proportional to 120,613.08, 166,445.98 and 66,906.20

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Solution

The fourth proportional to 120,613.08, 166,445.98 and 66,906.20 is: 92,330.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,613.08 : 166,445.98 = 66,906.20 : x
  2. Step 2: Convert to fraction form
    120,613.08/166,445.98 = 66,906.20/x
  3. Step 3: Cross multiply
    120,613.08x = 166,445.98 × 66,906.20
  4. Step 4: Simplify right side
    120,613.08x = 11,136,268,027.08
  5. Step 5: Solve for x
    x = 11,136,268,027.08/120,613.08
  6. Step 6: Final answer
    x = 92,330.52

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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.