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Finding the Fourth Proportional to 130,757.76, 196,165.78 and 47,651.76

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Solution

The fourth proportional to 130,757.76, 196,165.78 and 47,651.76 is: 71,488.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,757.76 : 196,165.78 = 47,651.76 : x
  2. Step 2: Convert to fraction form
    130,757.76/196,165.78 = 47,651.76/x
  3. Step 3: Cross multiply
    130,757.76x = 196,165.78 × 47,651.76
  4. Step 4: Simplify right side
    130,757.76x = 9,347,644,668.77
  5. Step 5: Solve for x
    x = 9,347,644,668.77/130,757.76
  6. Step 6: Final answer
    x = 71,488.26

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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.