Home / 454,562.26-681,734.03-139,021.90

Finding the Fourth Proportional to 454,562.26, 681,734.03 and 139,021.90

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Solution

The fourth proportional to 454,562.26, 681,734.03 and 139,021.90 is: 208,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,562.26 : 681,734.03 = 139,021.90 : x
  2. Step 2: Convert to fraction form
    454,562.26/681,734.03 = 139,021.90/x
  3. Step 3: Cross multiply
    454,562.26x = 681,734.03 × 139,021.90
  4. Step 4: Simplify right side
    454,562.26x = 94,775,960,145.26
  5. Step 5: Solve for x
    x = 94,775,960,145.26/454,562.26
  6. Step 6: Final answer
    x = 208,499.40

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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.