Home / 149,491.61-206,300.03-81,508.02

Finding the Fourth Proportional to 149,491.61, 206,300.03 and 81,508.02

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Solution

The fourth proportional to 149,491.61, 206,300.03 and 81,508.02 is: 112,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,491.61 : 206,300.03 = 81,508.02 : x
  2. Step 2: Convert to fraction form
    149,491.61/206,300.03 = 81,508.02/x
  3. Step 3: Cross multiply
    149,491.61x = 206,300.03 × 81,508.02
  4. Step 4: Simplify right side
    149,491.61x = 16,815,106,563.70
  5. Step 5: Solve for x
    x = 16,815,106,563.70/149,491.61
  6. Step 6: Final answer
    x = 112,481.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.