Home / 120,404.12-166,159.12-66,690.20

Finding the Fourth Proportional to 120,404.12, 166,159.12 and 66,690.20

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Solution

The fourth proportional to 120,404.12, 166,159.12 and 66,690.20 is: 92,033.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,404.12 : 166,159.12 = 66,690.20 : x
  2. Step 2: Convert to fraction form
    120,404.12/166,159.12 = 66,690.20/x
  3. Step 3: Cross multiply
    120,404.12x = 166,159.12 × 66,690.20
  4. Step 4: Simplify right side
    120,404.12x = 11,081,184,944.62
  5. Step 5: Solve for x
    x = 11,081,184,944.62/120,404.12
  6. Step 6: Final answer
    x = 92,033.27

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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.