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Finding the Fourth Proportional to 195,745.65, 270,116.21 and 115,157.60

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Solution

The fourth proportional to 195,745.65, 270,116.21 and 115,157.60 is: 158,909.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,745.65 : 270,116.21 = 115,157.60 : x
  2. Step 2: Convert to fraction form
    195,745.65/270,116.21 = 115,157.60/x
  3. Step 3: Cross multiply
    195,745.65x = 270,116.21 × 115,157.60
  4. Step 4: Simplify right side
    195,745.65x = 31,105,933,551.26
  5. Step 5: Solve for x
    x = 31,105,933,551.26/195,745.65
  6. Step 6: Final answer
    x = 158,909.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.