Home / 120,127.39-165,776.83-66,414.67

Finding the Fourth Proportional to 120,127.39, 165,776.83 and 66,414.67

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Solution

The fourth proportional to 120,127.39, 165,776.83 and 66,414.67 is: 91,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,127.39 : 165,776.83 = 66,414.67 : x
  2. Step 2: Convert to fraction form
    120,127.39/165,776.83 = 66,414.67/x
  3. Step 3: Cross multiply
    120,127.39x = 165,776.83 × 66,414.67
  4. Step 4: Simplify right side
    120,127.39x = 11,010,012,877.62
  5. Step 5: Solve for x
    x = 11,010,012,877.62/120,127.39
  6. Step 6: Final answer
    x = 91,652.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.