Home / 135,714.20-187,319.94-87,348.92

Finding the Fourth Proportional to 135,714.20, 187,319.94 and 87,348.92

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Solution

The fourth proportional to 135,714.20, 187,319.94 and 87,348.92 is: 120,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,714.20 : 187,319.94 = 87,348.92 : x
  2. Step 2: Convert to fraction form
    135,714.20/187,319.94 = 87,348.92/x
  3. Step 3: Cross multiply
    135,714.20x = 187,319.94 × 87,348.92
  4. Step 4: Simplify right side
    135,714.20x = 16,362,194,453.46
  5. Step 5: Solve for x
    x = 16,362,194,453.46/135,714.20
  6. Step 6: Final answer
    x = 120,563.61

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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.