Home / 149,429.89-206,213.40-81,446.93

Finding the Fourth Proportional to 149,429.89, 206,213.40 and 81,446.93

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Solution

The fourth proportional to 149,429.89, 206,213.40 and 81,446.93 is: 112,396.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,429.89 : 206,213.40 = 81,446.93 : x
  2. Step 2: Convert to fraction form
    149,429.89/206,213.40 = 81,446.93/x
  3. Step 3: Cross multiply
    149,429.89x = 206,213.40 × 81,446.93
  4. Step 4: Simplify right side
    149,429.89x = 16,795,447,323.80
  5. Step 5: Solve for x
    x = 16,795,447,323.80/149,429.89
  6. Step 6: Final answer
    x = 112,396.84

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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.