Home / 147,912.67-221,210.20-131,380.03

Finding the Fourth Proportional to 147,912.67, 221,210.20 and 131,380.03

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Solution

The fourth proportional to 147,912.67, 221,210.20 and 131,380.03 is: 196,484.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,912.67 : 221,210.20 = 131,380.03 : x
  2. Step 2: Convert to fraction form
    147,912.67/221,210.20 = 131,380.03/x
  3. Step 3: Cross multiply
    147,912.67x = 221,210.20 × 131,380.03
  4. Step 4: Simplify right side
    147,912.67x = 29,062,602,712.31
  5. Step 5: Solve for x
    x = 29,062,602,712.31/147,912.67
  6. Step 6: Final answer
    x = 196,484.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.