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Finding the Fourth Proportional to 169,762.96, 254,256.88 and 81,078.96

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Solution

The fourth proportional to 169,762.96, 254,256.88 and 81,078.96 is: 121,433.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,762.96 : 254,256.88 = 81,078.96 : x
  2. Step 2: Convert to fraction form
    169,762.96/254,256.88 = 81,078.96/x
  3. Step 3: Cross multiply
    169,762.96x = 254,256.88 × 81,078.96
  4. Step 4: Simplify right side
    169,762.96x = 20,614,883,403.24
  5. Step 5: Solve for x
    x = 20,614,883,403.24/169,762.96
  6. Step 6: Final answer
    x = 121,433.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.