Home / 454,626.68-681,915.20-139,083.56

Finding the Fourth Proportional to 454,626.68, 681,915.20 and 139,083.56

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Solution

The fourth proportional to 454,626.68, 681,915.20 and 139,083.56 is: 208,617.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,626.68 : 681,915.20 = 139,083.56 : x
  2. Step 2: Convert to fraction form
    454,626.68/681,915.20 = 139,083.56/x
  3. Step 3: Cross multiply
    454,626.68x = 681,915.20 × 139,083.56
  4. Step 4: Simplify right side
    454,626.68x = 94,843,193,634.11
  5. Step 5: Solve for x
    x = 94,843,193,634.11/454,626.68
  6. Step 6: Final answer
    x = 208,617.75

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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.