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Finding the Fourth Proportional to 168,020.76, 231,867.95 and 91,539.63

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Solution

The fourth proportional to 168,020.76, 231,867.95 and 91,539.63 is: 126,324.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,020.76 : 231,867.95 = 91,539.63 : x
  2. Step 2: Convert to fraction form
    168,020.76/231,867.95 = 91,539.63/x
  3. Step 3: Cross multiply
    168,020.76x = 231,867.95 × 91,539.63
  4. Step 4: Simplify right side
    168,020.76x = 21,225,106,351.86
  5. Step 5: Solve for x
    x = 21,225,106,351.86/168,020.76
  6. Step 6: Final answer
    x = 126,324.31

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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.