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Finding the Fourth Proportional to 159,945, 220,743.60 and 92,877

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Solution

The fourth proportional to 159,945, 220,743.60 and 92,877 is: 128,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,945 : 220,743.60 = 92,877 : x
  2. Step 2: Convert to fraction form
    159,945/220,743.60 = 92,877/x
  3. Step 3: Cross multiply
    159,945x = 220,743.60 × 92,877
  4. Step 4: Simplify right side
    159,945x = 20,502,003,337.20
  5. Step 5: Solve for x
    x = 20,502,003,337.20/159,945
  6. Step 6: Final answer
    x = 128,181.58

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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.