Home / 120,090.04-165,709.86-66,367.73

Finding the Fourth Proportional to 120,090.04, 165,709.86 and 66,367.73

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Solution

The fourth proportional to 120,090.04, 165,709.86 and 66,367.73 is: 91,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,090.04 : 165,709.86 = 66,367.73 : x
  2. Step 2: Convert to fraction form
    120,090.04/165,709.86 = 66,367.73/x
  3. Step 3: Cross multiply
    120,090.04x = 165,709.86 × 66,367.73
  4. Step 4: Simplify right side
    120,090.04x = 10,997,787,246.82
  5. Step 5: Solve for x
    x = 10,997,787,246.82/120,090.04
  6. Step 6: Final answer
    x = 91,579.51

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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.