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Finding the Fourth Proportional to 123,960.82, 171,065.12 and 67,372.19

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Solution

The fourth proportional to 123,960.82, 171,065.12 and 67,372.19 is: 92,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,960.82 : 171,065.12 = 67,372.19 : x
  2. Step 2: Convert to fraction form
    123,960.82/171,065.12 = 67,372.19/x
  3. Step 3: Cross multiply
    123,960.82x = 171,065.12 × 67,372.19
  4. Step 4: Simplify right side
    123,960.82x = 11,525,032,363.11
  5. Step 5: Solve for x
    x = 11,525,032,363.11/123,960.82
  6. Step 6: Final answer
    x = 92,973.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.