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Finding the Fourth Proportional to 171,679.49, 257,551.53 and 69,104.65

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Solution

The fourth proportional to 171,679.49, 257,551.53 and 69,104.65 is: 103,669.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,679.49 : 257,551.53 = 69,104.65 : x
  2. Step 2: Convert to fraction form
    171,679.49/257,551.53 = 69,104.65/x
  3. Step 3: Cross multiply
    171,679.49x = 257,551.53 × 69,104.65
  4. Step 4: Simplify right side
    171,679.49x = 17,798,008,337.61
  5. Step 5: Solve for x
    x = 17,798,008,337.61/171,679.49
  6. Step 6: Final answer
    x = 103,669.97

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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.