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Finding the Fourth Proportional to 129,900.63, 194,856.62 and 41,160.67

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Solution

The fourth proportional to 129,900.63, 194,856.62 and 41,160.67 is: 61,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,900.63 : 194,856.62 = 41,160.67 : x
  2. Step 2: Convert to fraction form
    129,900.63/194,856.62 = 41,160.67/x
  3. Step 3: Cross multiply
    129,900.63x = 194,856.62 × 41,160.67
  4. Step 4: Simplify right side
    129,900.63x = 8,020,428,827.33
  5. Step 5: Solve for x
    x = 8,020,428,827.33/129,900.63
  6. Step 6: Final answer
    x = 61,742.80

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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.