Home / 120,162.46-165,825.27-66,451.09

Finding the Fourth Proportional to 120,162.46, 165,825.27 and 66,451.09

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Solution

The fourth proportional to 120,162.46, 165,825.27 and 66,451.09 is: 91,703.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,162.46 : 165,825.27 = 66,451.09 : x
  2. Step 2: Convert to fraction form
    120,162.46/165,825.27 = 66,451.09/x
  3. Step 3: Cross multiply
    120,162.46x = 165,825.27 × 66,451.09
  4. Step 4: Simplify right side
    120,162.46x = 11,019,268,779.66
  5. Step 5: Solve for x
    x = 11,019,268,779.66/120,162.46
  6. Step 6: Final answer
    x = 91,703.09

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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.