Home / 147,621.79-221,467.85-47,782

Finding the Fourth Proportional to 147,621.79, 221,467.85 and 47,782

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Solution

The fourth proportional to 147,621.79, 221,467.85 and 47,782 is: 71,684.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,621.79 : 221,467.85 = 47,782 : x
  2. Step 2: Convert to fraction form
    147,621.79/221,467.85 = 47,782/x
  3. Step 3: Cross multiply
    147,621.79x = 221,467.85 × 47,782
  4. Step 4: Simplify right side
    147,621.79x = 10,582,176,808.70
  5. Step 5: Solve for x
    x = 10,582,176,808.70/147,621.79
  6. Step 6: Final answer
    x = 71,684.38

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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.