Home / 120,284.96-165,993.56-66,573.68

Finding the Fourth Proportional to 120,284.96, 165,993.56 and 66,573.68

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Solution

The fourth proportional to 120,284.96, 165,993.56 and 66,573.68 is: 91,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,284.96 : 165,993.56 = 66,573.68 : x
  2. Step 2: Convert to fraction form
    120,284.96/165,993.56 = 66,573.68/x
  3. Step 3: Cross multiply
    120,284.96x = 165,993.56 × 66,573.68
  4. Step 4: Simplify right side
    120,284.96x = 11,050,802,145.50
  5. Step 5: Solve for x
    x = 11,050,802,145.50/120,284.96
  6. Step 6: Final answer
    x = 91,871.85

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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.