Home / 147,949.10-221,814.30-81,464.30

Finding the Fourth Proportional to 147,949.10, 221,814.30 and 81,464.30

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Solution

The fourth proportional to 147,949.10, 221,814.30 and 81,464.30 is: 122,136.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,949.10 : 221,814.30 = 81,464.30 : x
  2. Step 2: Convert to fraction form
    147,949.10/221,814.30 = 81,464.30/x
  3. Step 3: Cross multiply
    147,949.10x = 221,814.30 × 81,464.30
  4. Step 4: Simplify right side
    147,949.10x = 18,069,946,679.49
  5. Step 5: Solve for x
    x = 18,069,946,679.49/147,949.10
  6. Step 6: Final answer
    x = 122,136.24

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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.