Home / 120,087.46-165,729.27-66,371.31

Finding the Fourth Proportional to 120,087.46, 165,729.27 and 66,371.31

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Solution

The fourth proportional to 120,087.46, 165,729.27 and 66,371.31 is: 91,597.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,087.46 : 165,729.27 = 66,371.31 : x
  2. Step 2: Convert to fraction form
    120,087.46/165,729.27 = 66,371.31/x
  3. Step 3: Cross multiply
    120,087.46x = 165,729.27 × 66,371.31
  4. Step 4: Simplify right side
    120,087.46x = 10,999,668,755.24
  5. Step 5: Solve for x
    x = 10,999,668,755.24/120,087.46
  6. Step 6: Final answer
    x = 91,597.15

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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.