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Finding the Fourth Proportional to 159,254.40, 238,867.20 and 54,076.80

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Solution

The fourth proportional to 159,254.40, 238,867.20 and 54,076.80 is: 81,110.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,254.40 : 238,867.20 = 54,076.80 : x
  2. Step 2: Convert to fraction form
    159,254.40/238,867.20 = 54,076.80/x
  3. Step 3: Cross multiply
    159,254.40x = 238,867.20 × 54,076.80
  4. Step 4: Simplify right side
    159,254.40x = 12,917,173,800.96
  5. Step 5: Solve for x
    x = 12,917,173,800.96/159,254.40
  6. Step 6: Final answer
    x = 81,110.31

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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.