Home / 76,786.48-115,180.44-75,153.52

Finding the Fourth Proportional to 76,786.48, 115,180.44 and 75,153.52

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Solution

The fourth proportional to 76,786.48, 115,180.44 and 75,153.52 is: 112,730.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,786.48 : 115,180.44 = 75,153.52 : x
  2. Step 2: Convert to fraction form
    76,786.48/115,180.44 = 75,153.52/x
  3. Step 3: Cross multiply
    76,786.48x = 115,180.44 × 75,153.52
  4. Step 4: Simplify right side
    76,786.48x = 8,656,215,501.15
  5. Step 5: Solve for x
    x = 8,656,215,501.15/76,786.48
  6. Step 6: Final answer
    x = 112,730.98

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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.