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Finding the Fourth Proportional to 101,668.88, 140,299.24 and 56,347.64

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Solution

The fourth proportional to 101,668.88, 140,299.24 and 56,347.64 is: 77,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,668.88 : 140,299.24 = 56,347.64 : x
  2. Step 2: Convert to fraction form
    101,668.88/140,299.24 = 56,347.64/x
  3. Step 3: Cross multiply
    101,668.88x = 140,299.24 × 56,347.64
  4. Step 4: Simplify right side
    101,668.88x = 7,905,530,659.91
  5. Step 5: Solve for x
    x = 7,905,530,659.91/101,668.88
  6. Step 6: Final answer
    x = 77,757.62

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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.