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Finding the Fourth Proportional to 136,118.01, 187,846.11 and 75,691.20

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Solution

The fourth proportional to 136,118.01, 187,846.11 and 75,691.20 is: 104,455.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,118.01 : 187,846.11 = 75,691.20 : x
  2. Step 2: Convert to fraction form
    136,118.01/187,846.11 = 75,691.20/x
  3. Step 3: Cross multiply
    136,118.01x = 187,846.11 × 75,691.20
  4. Step 4: Simplify right side
    136,118.01x = 14,218,297,481.23
  5. Step 5: Solve for x
    x = 14,218,297,481.23/136,118.01
  6. Step 6: Final answer
    x = 104,455.67

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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.