Home / 165,997.86-249,042.96-81,782.52

Finding the Fourth Proportional to 165,997.86, 249,042.96 and 81,782.52

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Solution

The fourth proportional to 165,997.86, 249,042.96 and 81,782.52 is: 122,696.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,997.86 : 249,042.96 = 81,782.52 : x
  2. Step 2: Convert to fraction form
    165,997.86/249,042.96 = 81,782.52/x
  3. Step 3: Cross multiply
    165,997.86x = 249,042.96 × 81,782.52
  4. Step 4: Simplify right side
    165,997.86x = 20,367,360,857.06
  5. Step 5: Solve for x
    x = 20,367,360,857.06/165,997.86
  6. Step 6: Final answer
    x = 122,696.53

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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.