Home / 130,202.16-179,680.41-76,489.44

Finding the Fourth Proportional to 130,202.16, 179,680.41 and 76,489.44

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Solution

The fourth proportional to 130,202.16, 179,680.41 and 76,489.44 is: 105,556.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,202.16 : 179,680.41 = 76,489.44 : x
  2. Step 2: Convert to fraction form
    130,202.16/179,680.41 = 76,489.44/x
  3. Step 3: Cross multiply
    130,202.16x = 179,680.41 × 76,489.44
  4. Step 4: Simplify right side
    130,202.16x = 13,743,653,939.87
  5. Step 5: Solve for x
    x = 13,743,653,939.87/130,202.16
  6. Step 6: Final answer
    x = 105,556.27

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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.