Home / 123,968.53-171,077.70-67,380.04

Finding the Fourth Proportional to 123,968.53, 171,077.70 and 67,380.04

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Solution

The fourth proportional to 123,968.53, 171,077.70 and 67,380.04 is: 92,985.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,968.53 : 171,077.70 = 67,380.04 : x
  2. Step 2: Convert to fraction form
    123,968.53/171,077.70 = 67,380.04/x
  3. Step 3: Cross multiply
    123,968.53x = 171,077.70 × 67,380.04
  4. Step 4: Simplify right side
    123,968.53x = 11,527,222,269.11
  5. Step 5: Solve for x
    x = 11,527,222,269.11/123,968.53
  6. Step 6: Final answer
    x = 92,985.07

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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.