Home / 154,647.20-231,503.94-139,863.08

Finding the Fourth Proportional to 154,647.20, 231,503.94 and 139,863.08

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Solution

The fourth proportional to 154,647.20, 231,503.94 and 139,863.08 is: 209,372.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,647.20 : 231,503.94 = 139,863.08 : x
  2. Step 2: Convert to fraction form
    154,647.20/231,503.94 = 139,863.08/x
  3. Step 3: Cross multiply
    154,647.20x = 231,503.94 × 139,863.08
  4. Step 4: Simplify right side
    154,647.20x = 32,378,854,080.54
  5. Step 5: Solve for x
    x = 32,378,854,080.54/154,647.20
  6. Step 6: Final answer
    x = 209,372.39

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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.