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Finding the Fourth Proportional to 103,301.97, 142,554.84 and 57,976.39

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Solution

The fourth proportional to 103,301.97, 142,554.84 and 57,976.39 is: 80,006.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,301.97 : 142,554.84 = 57,976.39 : x
  2. Step 2: Convert to fraction form
    103,301.97/142,554.84 = 57,976.39/x
  3. Step 3: Cross multiply
    103,301.97x = 142,554.84 × 57,976.39
  4. Step 4: Simplify right side
    103,301.97x = 8,264,815,000.23
  5. Step 5: Solve for x
    x = 8,264,815,000.23/103,301.97
  6. Step 6: Final answer
    x = 80,006.36

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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.