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Finding the Fourth Proportional to 171,501.91, 257,252.96 and 71,607.65

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Solution

The fourth proportional to 171,501.91, 257,252.96 and 71,607.65 is: 107,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,501.91 : 257,252.96 = 71,607.65 : x
  2. Step 2: Convert to fraction form
    171,501.91/257,252.96 = 71,607.65/x
  3. Step 3: Cross multiply
    171,501.91x = 257,252.96 × 71,607.65
  4. Step 4: Simplify right side
    171,501.91x = 18,421,278,813.90
  5. Step 5: Solve for x
    x = 18,421,278,813.90/171,501.91
  6. Step 6: Final answer
    x = 107,411.51

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1.5x scale

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.