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Finding the Fourth Proportional to 170,725.44, 256,084.80 and 77,165.76

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Solution

The fourth proportional to 170,725.44, 256,084.80 and 77,165.76 is: 115,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,725.44 : 256,084.80 = 77,165.76 : x
  2. Step 2: Convert to fraction form
    170,725.44/256,084.80 = 77,165.76/x
  3. Step 3: Cross multiply
    170,725.44x = 256,084.80 × 77,165.76
  4. Step 4: Simplify right side
    170,725.44x = 19,760,978,216.45
  5. Step 5: Solve for x
    x = 19,760,978,216.45/170,725.44
  6. Step 6: Final answer
    x = 115,747.12

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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.