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Finding the Fourth Proportional to 138,880.10, 207,992.10 and 94,265.30

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Solution

The fourth proportional to 138,880.10, 207,992.10 and 94,265.30 is: 141,175.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,880.10 : 207,992.10 = 94,265.30 : x
  2. Step 2: Convert to fraction form
    138,880.10/207,992.10 = 94,265.30/x
  3. Step 3: Cross multiply
    138,880.10x = 207,992.10 × 94,265.30
  4. Step 4: Simplify right side
    138,880.10x = 19,606,437,704.13
  5. Step 5: Solve for x
    x = 19,606,437,704.13/138,880.10
  6. Step 6: Final answer
    x = 141,175.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.