Home / 117,487.10-162,131.64-63,771.68

Finding the Fourth Proportional to 117,487.10, 162,131.64 and 63,771.68

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Solution

The fourth proportional to 117,487.10, 162,131.64 and 63,771.68 is: 88,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,487.10 : 162,131.64 = 63,771.68 : x
  2. Step 2: Convert to fraction form
    117,487.10/162,131.64 = 63,771.68/x
  3. Step 3: Cross multiply
    117,487.10x = 162,131.64 × 63,771.68
  4. Step 4: Simplify right side
    117,487.10x = 10,339,407,063.96
  5. Step 5: Solve for x
    x = 10,339,407,063.96/117,487.10
  6. Step 6: Final answer
    x = 88,004.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.