Home / 445,845.92-668,779.13-108,889.36

Finding the Fourth Proportional to 445,845.92, 668,779.13 and 108,889.36

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Solution

The fourth proportional to 445,845.92, 668,779.13 and 108,889.36 is: 163,336.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,845.92 : 668,779.13 = 108,889.36 : x
  2. Step 2: Convert to fraction form
    445,845.92/668,779.13 = 108,889.36/x
  3. Step 3: Cross multiply
    445,845.92x = 668,779.13 × 108,889.36
  4. Step 4: Simplify right side
    445,845.92x = 72,822,933,809.22
  5. Step 5: Solve for x
    x = 72,822,933,809.22/445,845.92
  6. Step 6: Final answer
    x = 163,336.55

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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.