Home / 165,771.15-248,492.70-81,462.30

Finding the Fourth Proportional to 165,771.15, 248,492.70 and 81,462.30

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Solution

The fourth proportional to 165,771.15, 248,492.70 and 81,462.30 is: 122,112.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,771.15 : 248,492.70 = 81,462.30 : x
  2. Step 2: Convert to fraction form
    165,771.15/248,492.70 = 81,462.30/x
  3. Step 3: Cross multiply
    165,771.15x = 248,492.70 × 81,462.30
  4. Step 4: Simplify right side
    165,771.15x = 20,242,786,875.21
  5. Step 5: Solve for x
    x = 20,242,786,875.21/165,771.15
  6. Step 6: Final answer
    x = 122,112.85

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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.