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Finding the Fourth Proportional to 168,693.64, 253,078.86 and 57,878.92

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Solution

The fourth proportional to 168,693.64, 253,078.86 and 57,878.92 is: 86,831.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,693.64 : 253,078.86 = 57,878.92 : x
  2. Step 2: Convert to fraction form
    168,693.64/253,078.86 = 57,878.92/x
  3. Step 3: Cross multiply
    168,693.64x = 253,078.86 × 57,878.92
  4. Step 4: Simplify right side
    168,693.64x = 14,647,931,091.63
  5. Step 5: Solve for x
    x = 14,647,931,091.63/168,693.64
  6. Step 6: Final answer
    x = 86,831.56

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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.