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Finding the Fourth Proportional to 100,951.44, 139,308 and 58,523.76

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Solution

The fourth proportional to 100,951.44, 139,308 and 58,523.76 is: 80,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,951.44 : 139,308 = 58,523.76 : x
  2. Step 2: Convert to fraction form
    100,951.44/139,308 = 58,523.76/x
  3. Step 3: Cross multiply
    100,951.44x = 139,308 × 58,523.76
  4. Step 4: Simplify right side
    100,951.44x = 8,152,827,958.08
  5. Step 5: Solve for x
    x = 8,152,827,958.08/100,951.44
  6. Step 6: Final answer
    x = 80,759.90

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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.