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Finding the Fourth Proportional to 123,915.84, 171,004.80 and 67,327.44

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Solution

The fourth proportional to 123,915.84, 171,004.80 and 67,327.44 is: 92,912.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,915.84 : 171,004.80 = 67,327.44 : x
  2. Step 2: Convert to fraction form
    123,915.84/171,004.80 = 67,327.44/x
  3. Step 3: Cross multiply
    123,915.84x = 171,004.80 × 67,327.44
  4. Step 4: Simplify right side
    123,915.84x = 11,513,315,411.71
  5. Step 5: Solve for x
    x = 11,513,315,411.71/123,915.84
  6. Step 6: Final answer
    x = 92,912.38

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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.