Home / 103,620.75-142,996.64-58,908.75

Finding the Fourth Proportional to 103,620.75, 142,996.64 and 58,908.75

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Solution

The fourth proportional to 103,620.75, 142,996.64 and 58,908.75 is: 81,294.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.75 : 142,996.64 = 58,908.75 : x
  2. Step 2: Convert to fraction form
    103,620.75/142,996.64 = 58,908.75/x
  3. Step 3: Cross multiply
    103,620.75x = 142,996.64 × 58,908.75
  4. Step 4: Simplify right side
    103,620.75x = 8,423,753,022.06
  5. Step 5: Solve for x
    x = 8,423,753,022.06/103,620.75
  6. Step 6: Final answer
    x = 81,294.08

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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.