Home / 117,324.82-161,909.32-63,609.97

Finding the Fourth Proportional to 117,324.82, 161,909.32 and 63,609.97

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Solution

The fourth proportional to 117,324.82, 161,909.32 and 63,609.97 is: 87,782.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,324.82 : 161,909.32 = 63,609.97 : x
  2. Step 2: Convert to fraction form
    117,324.82/161,909.32 = 63,609.97/x
  3. Step 3: Cross multiply
    117,324.82x = 161,909.32 × 63,609.97
  4. Step 4: Simplify right side
    117,324.82x = 10,299,046,987.92
  5. Step 5: Solve for x
    x = 10,299,046,987.92/117,324.82
  6. Step 6: Final answer
    x = 87,782.34

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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.