Home / 172,347.26-258,566.43-78,831.14

Finding the Fourth Proportional to 172,347.26, 258,566.43 and 78,831.14

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Solution

The fourth proportional to 172,347.26, 258,566.43 and 78,831.14 is: 118,267.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,347.26 : 258,566.43 = 78,831.14 : x
  2. Step 2: Convert to fraction form
    172,347.26/258,566.43 = 78,831.14/x
  3. Step 3: Cross multiply
    172,347.26x = 258,566.43 × 78,831.14
  4. Step 4: Simplify right side
    172,347.26x = 20,383,086,442.63
  5. Step 5: Solve for x
    x = 20,383,086,442.63/172,347.26
  6. Step 6: Final answer
    x = 118,267.54

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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.