Home / 219,390.30-329,085.45-124,911.90

Finding the Fourth Proportional to 219,390.30, 329,085.45 and 124,911.90

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Solution

The fourth proportional to 219,390.30, 329,085.45 and 124,911.90 is: 187,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,390.30 : 329,085.45 = 124,911.90 : x
  2. Step 2: Convert to fraction form
    219,390.30/329,085.45 = 124,911.90/x
  3. Step 3: Cross multiply
    219,390.30x = 329,085.45 × 124,911.90
  4. Step 4: Simplify right side
    219,390.30x = 41,106,688,821.86
  5. Step 5: Solve for x
    x = 41,106,688,821.86/219,390.30
  6. Step 6: Final answer
    x = 187,367.85

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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.