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Finding the Fourth Proportional to 117,228.48, 161,775 and 63,514.86

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Solution

The fourth proportional to 117,228.48, 161,775 and 63,514.86 is: 87,650.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,228.48 : 161,775 = 63,514.86 : x
  2. Step 2: Convert to fraction form
    117,228.48/161,775 = 63,514.86/x
  3. Step 3: Cross multiply
    117,228.48x = 161,775 × 63,514.86
  4. Step 4: Simplify right side
    117,228.48x = 10,275,116,476.50
  5. Step 5: Solve for x
    x = 10,275,116,476.50/117,228.48
  6. Step 6: Final answer
    x = 87,650.34

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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.