Home / 165,582.21-248,295.56-76,780.29

Finding the Fourth Proportional to 165,582.21, 248,295.56 and 76,780.29

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Solution

The fourth proportional to 165,582.21, 248,295.56 and 76,780.29 is: 115,134.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,582.21 : 248,295.56 = 76,780.29 : x
  2. Step 2: Convert to fraction form
    165,582.21/248,295.56 = 76,780.29/x
  3. Step 3: Cross multiply
    165,582.21x = 248,295.56 × 76,780.29
  4. Step 4: Simplify right side
    165,582.21x = 19,064,204,718.61
  5. Step 5: Solve for x
    x = 19,064,204,718.61/165,582.21
  6. Step 6: Final answer
    x = 115,134.38

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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.