Home / 221,103.77-331,662.15-61,181.02

Finding the Fourth Proportional to 221,103.77, 331,662.15 and 61,181.02

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Solution

The fourth proportional to 221,103.77, 331,662.15 and 61,181.02 is: 91,773.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,103.77 : 331,662.15 = 61,181.02 : x
  2. Step 2: Convert to fraction form
    221,103.77/331,662.15 = 61,181.02/x
  3. Step 3: Cross multiply
    221,103.77x = 331,662.15 × 61,181.02
  4. Step 4: Simplify right side
    221,103.77x = 20,291,426,974.08
  5. Step 5: Solve for x
    x = 20,291,426,974.08/221,103.77
  6. Step 6: Final answer
    x = 91,773.32

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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.