Home / 117,491.36-162,181.20-85,822.88

Finding the Fourth Proportional to 117,491.36, 162,181.20 and 85,822.88

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Solution

The fourth proportional to 117,491.36, 162,181.20 and 85,822.88 is: 118,467.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,491.36 : 162,181.20 = 85,822.88 : x
  2. Step 2: Convert to fraction form
    117,491.36/162,181.20 = 85,822.88/x
  3. Step 3: Cross multiply
    117,491.36x = 162,181.20 × 85,822.88
  4. Step 4: Simplify right side
    117,491.36x = 13,918,857,665.86
  5. Step 5: Solve for x
    x = 13,918,857,665.86/117,491.36
  6. Step 6: Final answer
    x = 118,467.07

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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.