Home / 219,429.20-329,127.33-79,187.83

Finding the Fourth Proportional to 219,429.20, 329,127.33 and 79,187.83

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Solution

The fourth proportional to 219,429.20, 329,127.33 and 79,187.83 is: 118,775.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,429.20 : 329,127.33 = 79,187.83 : x
  2. Step 2: Convert to fraction form
    219,429.20/329,127.33 = 79,187.83/x
  3. Step 3: Cross multiply
    219,429.20x = 329,127.33 × 79,187.83
  4. Step 4: Simplify right side
    219,429.20x = 26,062,878,530.53
  5. Step 5: Solve for x
    x = 26,062,878,530.53/219,429.20
  6. Step 6: Final answer
    x = 118,775.80

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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.