Home / 123,719.24-170,732.46-67,130.62

Finding the Fourth Proportional to 123,719.24, 170,732.46 and 67,130.62

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Solution

The fourth proportional to 123,719.24, 170,732.46 and 67,130.62 is: 92,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,719.24 : 170,732.46 = 67,130.62 : x
  2. Step 2: Convert to fraction form
    123,719.24/170,732.46 = 67,130.62/x
  3. Step 3: Cross multiply
    123,719.24x = 170,732.46 × 67,130.62
  4. Step 4: Simplify right side
    123,719.24x = 11,461,375,893.93
  5. Step 5: Solve for x
    x = 11,461,375,893.93/123,719.24
  6. Step 6: Final answer
    x = 92,640.21

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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.