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Finding the Fourth Proportional to 123,803.64, 170,849.02 and 67,215.02

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Solution

The fourth proportional to 123,803.64, 170,849.02 and 67,215.02 is: 92,756.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,803.64 : 170,849.02 = 67,215.02 : x
  2. Step 2: Convert to fraction form
    123,803.64/170,849.02 = 67,215.02/x
  3. Step 3: Cross multiply
    123,803.64x = 170,849.02 × 67,215.02
  4. Step 4: Simplify right side
    123,803.64x = 11,483,620,296.28
  5. Step 5: Solve for x
    x = 11,483,620,296.28/123,803.64
  6. Step 6: Final answer
    x = 92,756.73

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