Home / 143,360.72-214,678.20-76,556.24

Finding the Fourth Proportional to 143,360.72, 214,678.20 and 76,556.24

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Solution

The fourth proportional to 143,360.72, 214,678.20 and 76,556.24 is: 114,640.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,360.72 : 214,678.20 = 76,556.24 : x
  2. Step 2: Convert to fraction form
    143,360.72/214,678.20 = 76,556.24/x
  3. Step 3: Cross multiply
    143,360.72x = 214,678.20 × 76,556.24
  4. Step 4: Simplify right side
    143,360.72x = 16,434,955,801.97
  5. Step 5: Solve for x
    x = 16,434,955,801.97/143,360.72
  6. Step 6: Final answer
    x = 114,640.58

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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.