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Finding the Fourth Proportional to 195,655.72, 270,119.46 and 141,889

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Solution

The fourth proportional to 195,655.72, 270,119.46 and 141,889 is: 195,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,655.72 : 270,119.46 = 141,889 : x
  2. Step 2: Convert to fraction form
    195,655.72/270,119.46 = 141,889/x
  3. Step 3: Cross multiply
    195,655.72x = 270,119.46 × 141,889
  4. Step 4: Simplify right side
    195,655.72x = 38,326,980,059.94
  5. Step 5: Solve for x
    x = 38,326,980,059.94/195,655.72
  6. Step 6: Final answer
    x = 195,889.90

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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.