Home / 170,913.31-256,425.35-82,173.76

Finding the Fourth Proportional to 170,913.31, 256,425.35 and 82,173.76

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Solution

The fourth proportional to 170,913.31, 256,425.35 and 82,173.76 is: 123,287.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,913.31 : 256,425.35 = 82,173.76 : x
  2. Step 2: Convert to fraction form
    170,913.31/256,425.35 = 82,173.76/x
  3. Step 3: Cross multiply
    170,913.31x = 256,425.35 × 82,173.76
  4. Step 4: Simplify right side
    170,913.31x = 21,071,434,116.88
  5. Step 5: Solve for x
    x = 21,071,434,116.88/170,913.31
  6. Step 6: Final answer
    x = 123,287.26

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1.5x scale

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.