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Finding the Fourth Proportional to 129,365.73, 194,046.98 and 45,125.73

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Solution

The fourth proportional to 129,365.73, 194,046.98 and 45,125.73 is: 67,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,365.73 : 194,046.98 = 45,125.73 : x
  2. Step 2: Convert to fraction form
    129,365.73/194,046.98 = 45,125.73/x
  3. Step 3: Cross multiply
    129,365.73x = 194,046.98 × 45,125.73
  4. Step 4: Simplify right side
    129,365.73x = 8,756,511,401.17
  5. Step 5: Solve for x
    x = 8,756,511,401.17/129,365.73
  6. Step 6: Final answer
    x = 67,688.03

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1.5x scale

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.