Home / 165,513.98-248,076.48-76,579.64

Finding the Fourth Proportional to 165,513.98, 248,076.48 and 76,579.64

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Solution

The fourth proportional to 165,513.98, 248,076.48 and 76,579.64 is: 114,779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,513.98 : 248,076.48 = 76,579.64 : x
  2. Step 2: Convert to fraction form
    165,513.98/248,076.48 = 76,579.64/x
  3. Step 3: Cross multiply
    165,513.98x = 248,076.48 × 76,579.64
  4. Step 4: Simplify right side
    165,513.98x = 18,997,607,530.87
  5. Step 5: Solve for x
    x = 18,997,607,530.87/165,513.98
  6. Step 6: Final answer
    x = 114,779.47

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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.