Home / 123,731.84-170,753.22-67,143.24

Finding the Fourth Proportional to 123,731.84, 170,753.22 and 67,143.24

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Solution

The fourth proportional to 123,731.84, 170,753.22 and 67,143.24 is: 92,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,731.84 : 170,753.22 = 67,143.24 : x
  2. Step 2: Convert to fraction form
    123,731.84/170,753.22 = 67,143.24/x
  3. Step 3: Cross multiply
    123,731.84x = 170,753.22 × 67,143.24
  4. Step 4: Simplify right side
    123,731.84x = 11,464,924,431.23
  5. Step 5: Solve for x
    x = 11,464,924,431.23/123,731.84
  6. Step 6: Final answer
    x = 92,659.45

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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.