Home / 171,071.81-256,679.48-76,236.66

Finding the Fourth Proportional to 171,071.81, 256,679.48 and 76,236.66

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Solution

The fourth proportional to 171,071.81, 256,679.48 and 76,236.66 is: 114,386.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,071.81 : 256,679.48 = 76,236.66 : x
  2. Step 2: Convert to fraction form
    171,071.81/256,679.48 = 76,236.66/x
  3. Step 3: Cross multiply
    171,071.81x = 256,679.48 × 76,236.66
  4. Step 4: Simplify right side
    171,071.81x = 19,568,386,245.74
  5. Step 5: Solve for x
    x = 19,568,386,245.74/171,071.81
  6. Step 6: Final answer
    x = 114,386.97

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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.