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Finding the Fourth Proportional to 117,138.33, 161,650.21 and 63,422.22

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Solution

The fourth proportional to 117,138.33, 161,650.21 and 63,422.22 is: 87,522.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,138.33 : 161,650.21 = 63,422.22 : x
  2. Step 2: Convert to fraction form
    117,138.33/161,650.21 = 63,422.22/x
  3. Step 3: Cross multiply
    117,138.33x = 161,650.21 × 63,422.22
  4. Step 4: Simplify right side
    117,138.33x = 10,252,215,181.67
  5. Step 5: Solve for x
    x = 10,252,215,181.67/117,138.33
  6. Step 6: Final answer
    x = 87,522.29

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1.5x scale

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.