Home / 149,445.89-206,232.66-81,463.46

Finding the Fourth Proportional to 149,445.89, 206,232.66 and 81,463.46

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Solution

The fourth proportional to 149,445.89, 206,232.66 and 81,463.46 is: 112,418.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,445.89 : 206,232.66 = 81,463.46 : x
  2. Step 2: Convert to fraction form
    149,445.89/206,232.66 = 81,463.46/x
  3. Step 3: Cross multiply
    149,445.89x = 206,232.66 × 81,463.46
  4. Step 4: Simplify right side
    149,445.89x = 16,800,425,017.44
  5. Step 5: Solve for x
    x = 16,800,425,017.44/149,445.89
  6. Step 6: Final answer
    x = 112,418.11

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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.