Home / 123,139.62-170,044.65-92,873.16

Finding the Fourth Proportional to 123,139.62, 170,044.65 and 92,873.16

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Solution

The fourth proportional to 123,139.62, 170,044.65 and 92,873.16 is: 128,249.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,139.62 : 170,044.65 = 92,873.16 : x
  2. Step 2: Convert to fraction form
    123,139.62/170,044.65 = 92,873.16/x
  3. Step 3: Cross multiply
    123,139.62x = 170,044.65 × 92,873.16
  4. Step 4: Simplify right side
    123,139.62x = 15,792,583,986.59
  5. Step 5: Solve for x
    x = 15,792,583,986.59/123,139.62
  6. Step 6: Final answer
    x = 128,249.41

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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.