Home / 120,166.22-165,830.44-66,454.86

Finding the Fourth Proportional to 120,166.22, 165,830.44 and 66,454.86

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Solution

The fourth proportional to 120,166.22, 165,830.44 and 66,454.86 is: 91,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,166.22 : 165,830.44 = 66,454.86 : x
  2. Step 2: Convert to fraction form
    120,166.22/165,830.44 = 66,454.86/x
  3. Step 3: Cross multiply
    120,166.22x = 165,830.44 × 66,454.86
  4. Step 4: Simplify right side
    120,166.22x = 11,020,238,673.94
  5. Step 5: Solve for x
    x = 11,020,238,673.94/120,166.22
  6. Step 6: Final answer
    x = 91,708.29

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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.