Home / 149,244.30-205,956.78-81,260.22

Finding the Fourth Proportional to 149,244.30, 205,956.78 and 81,260.22

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Solution

The fourth proportional to 149,244.30, 205,956.78 and 81,260.22 is: 112,138.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,244.30 : 205,956.78 = 81,260.22 : x
  2. Step 2: Convert to fraction form
    149,244.30/205,956.78 = 81,260.22/x
  3. Step 3: Cross multiply
    149,244.30x = 205,956.78 × 81,260.22
  4. Step 4: Simplify right side
    149,244.30x = 16,736,093,253.29
  5. Step 5: Solve for x
    x = 16,736,093,253.29/149,244.30
  6. Step 6: Final answer
    x = 112,138.91

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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.