Home / 147,621.40-221,453.70-47,764.60

Finding the Fourth Proportional to 147,621.40, 221,453.70 and 47,764.60

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Solution

The fourth proportional to 147,621.40, 221,453.70 and 47,764.60 is: 71,653.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,621.40 : 221,453.70 = 47,764.60 : x
  2. Step 2: Convert to fraction form
    147,621.40/221,453.70 = 47,764.60/x
  3. Step 3: Cross multiply
    147,621.40x = 221,453.70 × 47,764.60
  4. Step 4: Simplify right side
    147,621.40x = 10,577,647,399.02
  5. Step 5: Solve for x
    x = 10,577,647,399.02/147,621.40
  6. Step 6: Final answer
    x = 71,653.89

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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.