Home / 165,420.37-248,155.16-76,682.85

Finding the Fourth Proportional to 165,420.37, 248,155.16 and 76,682.85

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Solution

The fourth proportional to 165,420.37, 248,155.16 and 76,682.85 is: 115,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,420.37 : 248,155.16 = 76,682.85 : x
  2. Step 2: Convert to fraction form
    165,420.37/248,155.16 = 76,682.85/x
  3. Step 3: Cross multiply
    165,420.37x = 248,155.16 × 76,682.85
  4. Step 4: Simplify right side
    165,420.37x = 19,029,244,911.01
  5. Step 5: Solve for x
    x = 19,029,244,911.01/165,420.37
  6. Step 6: Final answer
    x = 115,035.68

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1.5x scale

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.