Home / 149,956.01-206,939.70-81,973.79

Finding the Fourth Proportional to 149,956.01, 206,939.70 and 81,973.79

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Solution

The fourth proportional to 149,956.01, 206,939.70 and 81,973.79 is: 113,124.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,956.01 : 206,939.70 = 81,973.79 : x
  2. Step 2: Convert to fraction form
    149,956.01/206,939.70 = 81,973.79/x
  3. Step 3: Cross multiply
    149,956.01x = 206,939.70 × 81,973.79
  4. Step 4: Simplify right side
    149,956.01x = 16,963,631,720.41
  5. Step 5: Solve for x
    x = 16,963,631,720.41/149,956.01
  6. Step 6: Final answer
    x = 113,124.06

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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.