Home / 454,629.96-681,972.22-139,089.60

Finding the Fourth Proportional to 454,629.96, 681,972.22 and 139,089.60

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Solution

The fourth proportional to 454,629.96, 681,972.22 and 139,089.60 is: 208,642.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,629.96 : 681,972.22 = 139,089.60 : x
  2. Step 2: Convert to fraction form
    454,629.96/681,972.22 = 139,089.60/x
  3. Step 3: Cross multiply
    454,629.96x = 681,972.22 × 139,089.60
  4. Step 4: Simplify right side
    454,629.96x = 94,855,243,290.91
  5. Step 5: Solve for x
    x = 94,855,243,290.91/454,629.96
  6. Step 6: Final answer
    x = 208,642.75

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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.