Home / 165,520.20-248,085.90-76,585.86

Finding the Fourth Proportional to 165,520.20, 248,085.90 and 76,585.86

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Solution

The fourth proportional to 165,520.20, 248,085.90 and 76,585.86 is: 114,788.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,520.20 : 248,085.90 = 76,585.86 : x
  2. Step 2: Convert to fraction form
    165,520.20/248,085.90 = 76,585.86/x
  3. Step 3: Cross multiply
    165,520.20x = 248,085.90 × 76,585.86
  4. Step 4: Simplify right side
    165,520.20x = 18,999,872,005.37
  5. Step 5: Solve for x
    x = 18,999,872,005.37/165,520.20
  6. Step 6: Final answer
    x = 114,788.84

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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.