Home / 219,627.44-329,519.64-86,433.92

Finding the Fourth Proportional to 219,627.44, 329,519.64 and 86,433.92

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Solution

The fourth proportional to 219,627.44, 329,519.64 and 86,433.92 is: 129,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,627.44 : 329,519.64 = 86,433.92 : x
  2. Step 2: Convert to fraction form
    219,627.44/329,519.64 = 86,433.92/x
  3. Step 3: Cross multiply
    219,627.44x = 329,519.64 × 86,433.92
  4. Step 4: Simplify right side
    219,627.44x = 28,481,674,202.19
  5. Step 5: Solve for x
    x = 28,481,674,202.19/219,627.44
  6. Step 6: Final answer
    x = 129,681.77

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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.