Home / 147,631.80-221,480.10-47,796.60

Finding the Fourth Proportional to 147,631.80, 221,480.10 and 47,796.60

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Solution

The fourth proportional to 147,631.80, 221,480.10 and 47,796.60 is: 71,705.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,631.80 : 221,480.10 = 47,796.60 : x
  2. Step 2: Convert to fraction form
    147,631.80/221,480.10 = 47,796.60/x
  3. Step 3: Cross multiply
    147,631.80x = 221,480.10 × 47,796.60
  4. Step 4: Simplify right side
    147,631.80x = 10,585,995,747.66
  5. Step 5: Solve for x
    x = 10,585,995,747.66/147,631.80
  6. Step 6: Final answer
    x = 71,705.39

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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.