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Finding the Fourth Proportional to 171,677.49, 257,548.53 and 69,102.65

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Solution

The fourth proportional to 171,677.49, 257,548.53 and 69,102.65 is: 103,666.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,677.49 : 257,548.53 = 69,102.65 : x
  2. Step 2: Convert to fraction form
    171,677.49/257,548.53 = 69,102.65/x
  3. Step 3: Cross multiply
    171,677.49x = 257,548.53 × 69,102.65
  4. Step 4: Simplify right side
    171,677.49x = 17,797,286,829.61
  5. Step 5: Solve for x
    x = 17,797,286,829.61/171,677.49
  6. Step 6: Final answer
    x = 103,666.98

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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.