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Finding the Fourth Proportional to 131,145.60, 196,491.60 and 60,880.80

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Solution

The fourth proportional to 131,145.60, 196,491.60 and 60,880.80 is: 91,215.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,145.60 : 196,491.60 = 60,880.80 : x
  2. Step 2: Convert to fraction form
    131,145.60/196,491.60 = 60,880.80/x
  3. Step 3: Cross multiply
    131,145.60x = 196,491.60 × 60,880.80
  4. Step 4: Simplify right side
    131,145.60x = 11,962,565,801.28
  5. Step 5: Solve for x
    x = 11,962,565,801.28/131,145.60
  6. Step 6: Final answer
    x = 91,215.91

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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.