Home / 144,467.72-216,464.44-138,930.96

Finding the Fourth Proportional to 144,467.72, 216,464.44 and 138,930.96

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Solution

The fourth proportional to 144,467.72, 216,464.44 and 138,930.96 is: 208,168.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,467.72 : 216,464.44 = 138,930.96 : x
  2. Step 2: Convert to fraction form
    144,467.72/216,464.44 = 138,930.96/x
  3. Step 3: Cross multiply
    144,467.72x = 216,464.44 × 138,930.96
  4. Step 4: Simplify right side
    144,467.72x = 30,073,612,455.06
  5. Step 5: Solve for x
    x = 30,073,612,455.06/144,467.72
  6. Step 6: Final answer
    x = 208,168.39

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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.