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Finding the Fourth Proportional to 159,136.71, 238,707.81 and 53,958.39

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Solution

The fourth proportional to 159,136.71, 238,707.81 and 53,958.39 is: 80,938.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,136.71 : 238,707.81 = 53,958.39 : x
  2. Step 2: Convert to fraction form
    159,136.71/238,707.81 = 53,958.39/x
  3. Step 3: Cross multiply
    159,136.71x = 238,707.81 × 53,958.39
  4. Step 4: Simplify right side
    159,136.71x = 12,880,289,108.03
  5. Step 5: Solve for x
    x = 12,880,289,108.03/159,136.71
  6. Step 6: Final answer
    x = 80,938.52

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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.