Home / 172,771.12-258,934.20-83,852.56

Finding the Fourth Proportional to 172,771.12, 258,934.20 and 83,852.56

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Solution

The fourth proportional to 172,771.12, 258,934.20 and 83,852.56 is: 125,670.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,771.12 : 258,934.20 = 83,852.56 : x
  2. Step 2: Convert to fraction form
    172,771.12/258,934.20 = 83,852.56/x
  3. Step 3: Cross multiply
    172,771.12x = 258,934.20 × 83,852.56
  4. Step 4: Simplify right side
    172,771.12x = 21,712,295,541.55
  5. Step 5: Solve for x
    x = 21,712,295,541.55/172,771.12
  6. Step 6: Final answer
    x = 125,670.86

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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.