Home / 147,640.76-221,490.30-54,147.32

Finding the Fourth Proportional to 147,640.76, 221,490.30 and 54,147.32

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Solution

The fourth proportional to 147,640.76, 221,490.30 and 54,147.32 is: 81,231.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,640.76 : 221,490.30 = 54,147.32 : x
  2. Step 2: Convert to fraction form
    147,640.76/221,490.30 = 54,147.32/x
  3. Step 3: Cross multiply
    147,640.76x = 221,490.30 × 54,147.32
  4. Step 4: Simplify right side
    147,640.76x = 11,993,105,043.54
  5. Step 5: Solve for x
    x = 11,993,105,043.54/147,640.76
  6. Step 6: Final answer
    x = 81,231.67

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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.