Home / 156,850.93-235,111.92-76,778.48

Finding the Fourth Proportional to 156,850.93, 235,111.92 and 76,778.48

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Solution

The fourth proportional to 156,850.93, 235,111.92 and 76,778.48 is: 115,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,850.93 : 235,111.92 = 76,778.48 : x
  2. Step 2: Convert to fraction form
    156,850.93/235,111.92 = 76,778.48/x
  3. Step 3: Cross multiply
    156,850.93x = 235,111.92 × 76,778.48
  4. Step 4: Simplify right side
    156,850.93x = 18,051,536,147.34
  5. Step 5: Solve for x
    x = 18,051,536,147.34/156,850.93
  6. Step 6: Final answer
    x = 115,087.21

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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.