Home / 120,012.24-165,602.70-66,294.03

Finding the Fourth Proportional to 120,012.24, 165,602.70 and 66,294.03

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Solution

The fourth proportional to 120,012.24, 165,602.70 and 66,294.03 is: 91,477.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,012.24 : 165,602.70 = 66,294.03 : x
  2. Step 2: Convert to fraction form
    120,012.24/165,602.70 = 66,294.03/x
  3. Step 3: Cross multiply
    120,012.24x = 165,602.70 × 66,294.03
  4. Step 4: Simplify right side
    120,012.24x = 10,978,470,361.88
  5. Step 5: Solve for x
    x = 10,978,470,361.88/120,012.24
  6. Step 6: Final answer
    x = 91,477.92

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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.