Home / 147,858.40-221,787.60-131,528.80

Finding the Fourth Proportional to 147,858.40, 221,787.60 and 131,528.80

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Solution

The fourth proportional to 147,858.40, 221,787.60 and 131,528.80 is: 197,293.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,858.40 : 221,787.60 = 131,528.80 : x
  2. Step 2: Convert to fraction form
    147,858.40/221,787.60 = 131,528.80/x
  3. Step 3: Cross multiply
    147,858.40x = 221,787.60 × 131,528.80
  4. Step 4: Simplify right side
    147,858.40x = 29,171,456,882.88
  5. Step 5: Solve for x
    x = 29,171,456,882.88/147,858.40
  6. Step 6: Final answer
    x = 197,293.20

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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.