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Finding the Fourth Proportional to 79,369.56, 118,770.08 and 68,732.76

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Solution

The fourth proportional to 79,369.56, 118,770.08 and 68,732.76 is: 102,852.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,369.56 : 118,770.08 = 68,732.76 : x
  2. Step 2: Convert to fraction form
    79,369.56/118,770.08 = 68,732.76/x
  3. Step 3: Cross multiply
    79,369.56x = 118,770.08 × 68,732.76
  4. Step 4: Simplify right side
    79,369.56x = 8,163,395,403.82
  5. Step 5: Solve for x
    x = 8,163,395,403.82/79,369.56
  6. Step 6: Final answer
    x = 102,852.98

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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.