Home / 103,312.82-142,553.68-57,992.72

Finding the Fourth Proportional to 103,312.82, 142,553.68 and 57,992.72

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Solution

The fourth proportional to 103,312.82, 142,553.68 and 57,992.72 is: 80,019.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,312.82 : 142,553.68 = 57,992.72 : x
  2. Step 2: Convert to fraction form
    103,312.82/142,553.68 = 57,992.72/x
  3. Step 3: Cross multiply
    103,312.82x = 142,553.68 × 57,992.72
  4. Step 4: Simplify right side
    103,312.82x = 8,267,074,791.46
  5. Step 5: Solve for x
    x = 8,267,074,791.46/103,312.82
  6. Step 6: Final answer
    x = 80,019.83

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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.