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Finding the Fourth Proportional to 129,773, 179,086.92 and 70,157

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Solution

The fourth proportional to 129,773, 179,086.92 and 70,157 is: 96,816.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,773 : 179,086.92 = 70,157 : x
  2. Step 2: Convert to fraction form
    129,773/179,086.92 = 70,157/x
  3. Step 3: Cross multiply
    129,773x = 179,086.92 × 70,157
  4. Step 4: Simplify right side
    129,773x = 12,564,201,046.44
  5. Step 5: Solve for x
    x = 12,564,201,046.44/129,773
  6. Step 6: Final answer
    x = 96,816.76

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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.