Home / 171,450-257,102.79-64,815.99

Finding the Fourth Proportional to 171,450, 257,102.79 and 64,815.99

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Solution

The fourth proportional to 171,450, 257,102.79 and 64,815.99 is: 97,196.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,450 : 257,102.79 = 64,815.99 : x
  2. Step 2: Convert to fraction form
    171,450/257,102.79 = 64,815.99/x
  3. Step 3: Cross multiply
    171,450x = 257,102.79 × 64,815.99
  4. Step 4: Simplify right side
    171,450x = 16,664,371,865.61
  5. Step 5: Solve for x
    x = 16,664,371,865.61/171,450
  6. Step 6: Final answer
    x = 97,196.69

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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.