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Finding the Fourth Proportional to 131,404.40, 197,063.40 and 48,287.60

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Solution

The fourth proportional to 131,404.40, 197,063.40 and 48,287.60 is: 72,415.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,404.40 : 197,063.40 = 48,287.60 : x
  2. Step 2: Convert to fraction form
    131,404.40/197,063.40 = 48,287.60/x
  3. Step 3: Cross multiply
    131,404.40x = 197,063.40 × 48,287.60
  4. Step 4: Simplify right side
    131,404.40x = 9,515,718,633.84
  5. Step 5: Solve for x
    x = 9,515,718,633.84/131,404.40
  6. Step 6: Final answer
    x = 72,415.53

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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.