Home / 171,157.06-256,796.40-76,378.62

Finding the Fourth Proportional to 171,157.06, 256,796.40 and 76,378.62

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Solution

The fourth proportional to 171,157.06, 256,796.40 and 76,378.62 is: 114,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,157.06 : 256,796.40 = 76,378.62 : x
  2. Step 2: Convert to fraction form
    171,157.06/256,796.40 = 76,378.62/x
  3. Step 3: Cross multiply
    171,157.06x = 256,796.40 × 76,378.62
  4. Step 4: Simplify right side
    171,157.06x = 19,613,754,652.97
  5. Step 5: Solve for x
    x = 19,613,754,652.97/171,157.06
  6. Step 6: Final answer
    x = 114,595.07

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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.