Home / 219,895.08-329,621.04-86,723.88

Finding the Fourth Proportional to 219,895.08, 329,621.04 and 86,723.88

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Solution

The fourth proportional to 219,895.08, 329,621.04 and 86,723.88 is: 129,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,895.08 : 329,621.04 = 86,723.88 : x
  2. Step 2: Convert to fraction form
    219,895.08/329,621.04 = 86,723.88/x
  3. Step 3: Cross multiply
    219,895.08x = 329,621.04 × 86,723.88
  4. Step 4: Simplify right side
    219,895.08x = 28,586,015,518.44
  5. Step 5: Solve for x
    x = 28,586,015,518.44/219,895.08
  6. Step 6: Final answer
    x = 129,998.43

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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.