Home / 165,555.45-248,138.73-76,621.14

Finding the Fourth Proportional to 165,555.45, 248,138.73 and 76,621.14

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Solution

The fourth proportional to 165,555.45, 248,138.73 and 76,621.14 is: 114,841.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,555.45 : 248,138.73 = 76,621.14 : x
  2. Step 2: Convert to fraction form
    165,555.45/248,138.73 = 76,621.14/x
  3. Step 3: Cross multiply
    165,555.45x = 248,138.73 × 76,621.14
  4. Step 4: Simplify right side
    165,555.45x = 19,012,672,370.75
  5. Step 5: Solve for x
    x = 19,012,672,370.75/165,555.45
  6. Step 6: Final answer
    x = 114,841.72

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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.