Home / 156,754.56-235,100.40-76,758.06

Finding the Fourth Proportional to 156,754.56, 235,100.40 and 76,758.06

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Solution

The fourth proportional to 156,754.56, 235,100.40 and 76,758.06 is: 115,121.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,754.56 : 235,100.40 = 76,758.06 : x
  2. Step 2: Convert to fraction form
    156,754.56/235,100.40 = 76,758.06/x
  3. Step 3: Cross multiply
    156,754.56x = 235,100.40 × 76,758.06
  4. Step 4: Simplify right side
    156,754.56x = 18,045,850,609.22
  5. Step 5: Solve for x
    x = 18,045,850,609.22/156,754.56
  6. Step 6: Final answer
    x = 115,121.69

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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.