Home / 103,800.40-143,214.91-58,462.54

Finding the Fourth Proportional to 103,800.40, 143,214.91 and 58,462.54

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Solution

The fourth proportional to 103,800.40, 143,214.91 and 58,462.54 is: 80,661.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,800.40 : 143,214.91 = 58,462.54 : x
  2. Step 2: Convert to fraction form
    103,800.40/143,214.91 = 58,462.54/x
  3. Step 3: Cross multiply
    103,800.40x = 143,214.91 × 58,462.54
  4. Step 4: Simplify right side
    103,800.40x = 8,372,707,404.47
  5. Step 5: Solve for x
    x = 8,372,707,404.47/103,800.40
  6. Step 6: Final answer
    x = 80,661.61

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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.