Home / 131,115.60-196,738.20-74,998.80

Finding the Fourth Proportional to 131,115.60, 196,738.20 and 74,998.80

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Solution

The fourth proportional to 131,115.60, 196,738.20 and 74,998.80 is: 112,535.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,115.60 : 196,738.20 = 74,998.80 : x
  2. Step 2: Convert to fraction form
    131,115.60/196,738.20 = 74,998.80/x
  3. Step 3: Cross multiply
    131,115.60x = 196,738.20 × 74,998.80
  4. Step 4: Simplify right side
    131,115.60x = 14,755,128,914.16
  5. Step 5: Solve for x
    x = 14,755,128,914.16/131,115.60
  6. Step 6: Final answer
    x = 112,535.27

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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.