Home / 102,860.62-141,960.78-57,541.12

Finding the Fourth Proportional to 102,860.62, 141,960.78 and 57,541.12

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Solution

The fourth proportional to 102,860.62, 141,960.78 and 57,541.12 is: 79,414.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,860.62 : 141,960.78 = 57,541.12 : x
  2. Step 2: Convert to fraction form
    102,860.62/141,960.78 = 57,541.12/x
  3. Step 3: Cross multiply
    102,860.62x = 141,960.78 × 57,541.12
  4. Step 4: Simplify right side
    102,860.62x = 8,168,582,277.27
  5. Step 5: Solve for x
    x = 8,168,582,277.27/102,860.62
  6. Step 6: Final answer
    x = 79,414.09

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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.