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Finding the Fourth Proportional to 155,950, 215,197.92 and 92,276.64

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Solution

The fourth proportional to 155,950, 215,197.92 and 92,276.64 is: 127,334.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,950 : 215,197.92 = 92,276.64 : x
  2. Step 2: Convert to fraction form
    155,950/215,197.92 = 92,276.64/x
  3. Step 3: Cross multiply
    155,950x = 215,197.92 × 92,276.64
  4. Step 4: Simplify right side
    155,950x = 19,857,740,992.59
  5. Step 5: Solve for x
    x = 19,857,740,992.59/155,950
  6. Step 6: Final answer
    x = 127,334.02

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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.