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Finding the Fourth Proportional to 136,604.58, 188,537.02 and 79,277.84

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Solution

The fourth proportional to 136,604.58, 188,537.02 and 79,277.84 is: 109,416.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,604.58 : 188,537.02 = 79,277.84 : x
  2. Step 2: Convert to fraction form
    136,604.58/188,537.02 = 79,277.84/x
  3. Step 3: Cross multiply
    136,604.58x = 188,537.02 × 79,277.84
  4. Step 4: Simplify right side
    136,604.58x = 14,946,807,271.77
  5. Step 5: Solve for x
    x = 14,946,807,271.77/136,604.58
  6. Step 6: Final answer
    x = 109,416.59

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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.