Home / 170,736.96-256,236.12-77,308.32

Finding the Fourth Proportional to 170,736.96, 256,236.12 and 77,308.32

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Solution

The fourth proportional to 170,736.96, 256,236.12 and 77,308.32 is: 116,021.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,736.96 : 256,236.12 = 77,308.32 : x
  2. Step 2: Convert to fraction form
    170,736.96/256,236.12 = 77,308.32/x
  3. Step 3: Cross multiply
    170,736.96x = 256,236.12 × 77,308.32
  4. Step 4: Simplify right side
    170,736.96x = 19,809,183,960.52
  5. Step 5: Solve for x
    x = 19,809,183,960.52/170,736.96
  6. Step 6: Final answer
    x = 116,021.65

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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.