Home / 149,836.05-206,776.06-81,852.55

Finding the Fourth Proportional to 149,836.05, 206,776.06 and 81,852.55

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Solution

The fourth proportional to 149,836.05, 206,776.06 and 81,852.55 is: 112,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,836.05 : 206,776.06 = 81,852.55 : x
  2. Step 2: Convert to fraction form
    149,836.05/206,776.06 = 81,852.55/x
  3. Step 3: Cross multiply
    149,836.05x = 206,776.06 × 81,852.55
  4. Step 4: Simplify right side
    149,836.05x = 16,925,147,068.38
  5. Step 5: Solve for x
    x = 16,925,147,068.38/149,836.05
  6. Step 6: Final answer
    x = 112,957.78

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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.