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Finding the Fourth Proportional to 136,310.57, 188,086.11 and 75,879.67

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Solution

The fourth proportional to 136,310.57, 188,086.11 and 75,879.67 is: 104,701.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,310.57 : 188,086.11 = 75,879.67 : x
  2. Step 2: Convert to fraction form
    136,310.57/188,086.11 = 75,879.67/x
  3. Step 3: Cross multiply
    136,310.57x = 188,086.11 × 75,879.67
  4. Step 4: Simplify right side
    136,310.57x = 14,271,911,958.38
  5. Step 5: Solve for x
    x = 14,271,911,958.38/136,310.57
  6. Step 6: Final answer
    x = 104,701.43

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1.5x scale

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.