Home / 219,756.61-329,647.67-84,821.45

Finding the Fourth Proportional to 219,756.61, 329,647.67 and 84,821.45

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Solution

The fourth proportional to 219,756.61, 329,647.67 and 84,821.45 is: 127,237.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,756.61 : 329,647.67 = 84,821.45 : x
  2. Step 2: Convert to fraction form
    219,756.61/329,647.67 = 84,821.45/x
  3. Step 3: Cross multiply
    219,756.61x = 329,647.67 × 84,821.45
  4. Step 4: Simplify right side
    219,756.61x = 27,961,191,922.34
  5. Step 5: Solve for x
    x = 27,961,191,922.34/219,756.61
  6. Step 6: Final answer
    x = 127,237.09

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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.