Home / 149,560.63-206,396.12-81,577.60

Finding the Fourth Proportional to 149,560.63, 206,396.12 and 81,577.60

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Solution

The fourth proportional to 149,560.63, 206,396.12 and 81,577.60 is: 112,578.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,560.63 : 206,396.12 = 81,577.60 : x
  2. Step 2: Convert to fraction form
    149,560.63/206,396.12 = 81,577.60/x
  3. Step 3: Cross multiply
    149,560.63x = 206,396.12 × 81,577.60
  4. Step 4: Simplify right side
    149,560.63x = 16,837,299,806.87
  5. Step 5: Solve for x
    x = 16,837,299,806.87/149,560.63
  6. Step 6: Final answer
    x = 112,578.42

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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.