Home / 149,494.32-206,299.53-81,511.83

Finding the Fourth Proportional to 149,494.32, 206,299.53 and 81,511.83

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Solution

The fourth proportional to 149,494.32, 206,299.53 and 81,511.83 is: 112,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,494.32 : 206,299.53 = 81,511.83 : x
  2. Step 2: Convert to fraction form
    149,494.32/206,299.53 = 81,511.83/x
  3. Step 3: Cross multiply
    149,494.32x = 206,299.53 × 81,511.83
  4. Step 4: Simplify right side
    149,494.32x = 16,815,852,218.44
  5. Step 5: Solve for x
    x = 16,815,852,218.44/149,494.32
  6. Step 6: Final answer
    x = 112,484.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.