Home / 120,065.44-165,677.33-66,343.15

Finding the Fourth Proportional to 120,065.44, 165,677.33 and 66,343.15

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Solution

The fourth proportional to 120,065.44, 165,677.33 and 66,343.15 is: 91,546.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,065.44 : 165,677.33 = 66,343.15 : x
  2. Step 2: Convert to fraction form
    120,065.44/165,677.33 = 66,343.15/x
  3. Step 3: Cross multiply
    120,065.44x = 165,677.33 × 66,343.15
  4. Step 4: Simplify right side
    120,065.44x = 10,991,555,127.40
  5. Step 5: Solve for x
    x = 10,991,555,127.40/120,065.44
  6. Step 6: Final answer
    x = 91,546.37

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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.