Home / 103,344.90-142,614.70-58,021.75

Finding the Fourth Proportional to 103,344.90, 142,614.70 and 58,021.75

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Solution

The fourth proportional to 103,344.90, 142,614.70 and 58,021.75 is: 80,069.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,344.90 : 142,614.70 = 58,021.75 : x
  2. Step 2: Convert to fraction form
    103,344.90/142,614.70 = 58,021.75/x
  3. Step 3: Cross multiply
    103,344.90x = 142,614.70 × 58,021.75
  4. Step 4: Simplify right side
    103,344.90x = 8,274,754,469.73
  5. Step 5: Solve for x
    x = 8,274,754,469.73/103,344.90
  6. Step 6: Final answer
    x = 80,069.31

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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.