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Finding the Fourth Proportional to 158,651.80, 237,915.96 and 79,711

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Solution

The fourth proportional to 158,651.80, 237,915.96 and 79,711 is: 119,535.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,651.80 : 237,915.96 = 79,711 : x
  2. Step 2: Convert to fraction form
    158,651.80/237,915.96 = 79,711/x
  3. Step 3: Cross multiply
    158,651.80x = 237,915.96 × 79,711
  4. Step 4: Simplify right side
    158,651.80x = 18,964,519,087.56
  5. Step 5: Solve for x
    x = 18,964,519,087.56/158,651.80
  6. Step 6: Final answer
    x = 119,535.48

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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.