Home / 103,947.27-143,469.48-65,682.52

Finding the Fourth Proportional to 103,947.27, 143,469.48 and 65,682.52

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Solution

The fourth proportional to 103,947.27, 143,469.48 and 65,682.52 is: 90,655.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,947.27 : 143,469.48 = 65,682.52 : x
  2. Step 2: Convert to fraction form
    103,947.27/143,469.48 = 65,682.52/x
  3. Step 3: Cross multiply
    103,947.27x = 143,469.48 × 65,682.52
  4. Step 4: Simplify right side
    103,947.27x = 9,423,436,989.49
  5. Step 5: Solve for x
    x = 9,423,436,989.49/103,947.27
  6. Step 6: Final answer
    x = 90,655.94

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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.