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Finding the Fourth Proportional to 159,455.44, 220,058.49 and 87,835.42

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Solution

The fourth proportional to 159,455.44, 220,058.49 and 87,835.42 is: 121,218.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,455.44 : 220,058.49 = 87,835.42 : x
  2. Step 2: Convert to fraction form
    159,455.44/220,058.49 = 87,835.42/x
  3. Step 3: Cross multiply
    159,455.44x = 220,058.49 × 87,835.42
  4. Step 4: Simplify right side
    159,455.44x = 19,328,929,893.72
  5. Step 5: Solve for x
    x = 19,328,929,893.72/159,455.44
  6. Step 6: Final answer
    x = 121,218.38

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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.