Home / 454,576.54-681,819.45-139,036.18

Finding the Fourth Proportional to 454,576.54, 681,819.45 and 139,036.18

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Solution

The fourth proportional to 454,576.54, 681,819.45 and 139,036.18 is: 208,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,576.54 : 681,819.45 = 139,036.18 : x
  2. Step 2: Convert to fraction form
    454,576.54/681,819.45 = 139,036.18/x
  3. Step 3: Cross multiply
    454,576.54x = 681,819.45 × 139,036.18
  4. Step 4: Simplify right side
    454,576.54x = 94,797,571,777.70
  5. Step 5: Solve for x
    x = 94,797,571,777.70/454,576.54
  6. Step 6: Final answer
    x = 208,540.40

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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.