Home / 172,606.14-258,944.45-72,766.35

Finding the Fourth Proportional to 172,606.14, 258,944.45 and 72,766.35

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Solution

The fourth proportional to 172,606.14, 258,944.45 and 72,766.35 is: 109,164.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,606.14 : 258,944.45 = 72,766.35 : x
  2. Step 2: Convert to fraction form
    172,606.14/258,944.45 = 72,766.35/x
  3. Step 3: Cross multiply
    172,606.14x = 258,944.45 × 72,766.35
  4. Step 4: Simplify right side
    172,606.14x = 18,842,442,115.43
  5. Step 5: Solve for x
    x = 18,842,442,115.43/172,606.14
  6. Step 6: Final answer
    x = 109,164.38

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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.