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Finding the Fourth Proportional to 87,828.60, 131,451.30 and 87,828.60

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Solution

The fourth proportional to 87,828.60, 131,451.30 and 87,828.60 is: 131,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,828.60 : 131,451.30 = 87,828.60 : x
  2. Step 2: Convert to fraction form
    87,828.60/131,451.30 = 87,828.60/x
  3. Step 3: Cross multiply
    87,828.60x = 131,451.30 × 87,828.60
  4. Step 4: Simplify right side
    87,828.60x = 11,545,183,647.18
  5. Step 5: Solve for x
    x = 11,545,183,647.18/87,828.60
  6. Step 6: Final answer
    x = 131,451.30

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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.