Home / 219,738.12-329,638.74-67,947.02

Finding the Fourth Proportional to 219,738.12, 329,638.74 and 67,947.02

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Solution

The fourth proportional to 219,738.12, 329,638.74 and 67,947.02 is: 101,930.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,738.12 : 329,638.74 = 67,947.02 : x
  2. Step 2: Convert to fraction form
    219,738.12/329,638.74 = 67,947.02/x
  3. Step 3: Cross multiply
    219,738.12x = 329,638.74 × 67,947.02
  4. Step 4: Simplify right side
    219,738.12x = 22,397,970,059.55
  5. Step 5: Solve for x
    x = 22,397,970,059.55/219,738.12
  6. Step 6: Final answer
    x = 101,930.29

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1.5x scale

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.