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Finding the Fourth Proportional to 171,355.52, 257,087.06 and 103,045.70

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Solution

The fourth proportional to 171,355.52, 257,087.06 and 103,045.70 is: 154,600.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,355.52 : 257,087.06 = 103,045.70 : x
  2. Step 2: Convert to fraction form
    171,355.52/257,087.06 = 103,045.70/x
  3. Step 3: Cross multiply
    171,355.52x = 257,087.06 × 103,045.70
  4. Step 4: Simplify right side
    171,355.52x = 26,491,714,257.98
  5. Step 5: Solve for x
    x = 26,491,714,257.98/171,355.52
  6. Step 6: Final answer
    x = 154,600.88

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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.