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Finding the Fourth Proportional to 159,474.96, 239,112 and 84,547.80

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Solution

The fourth proportional to 159,474.96, 239,112 and 84,547.80 is: 126,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,474.96 : 239,112 = 84,547.80 : x
  2. Step 2: Convert to fraction form
    159,474.96/239,112 = 84,547.80/x
  3. Step 3: Cross multiply
    159,474.96x = 239,112 × 84,547.80
  4. Step 4: Simplify right side
    159,474.96x = 20,216,393,553.60
  5. Step 5: Solve for x
    x = 20,216,393,553.60/159,474.96
  6. Step 6: Final answer
    x = 126,768.45

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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.