Home / 104,156.35-143,735.05-56,408.61

Finding the Fourth Proportional to 104,156.35, 143,735.05 and 56,408.61

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Solution

The fourth proportional to 104,156.35, 143,735.05 and 56,408.61 is: 77,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,156.35 : 143,735.05 = 56,408.61 : x
  2. Step 2: Convert to fraction form
    104,156.35/143,735.05 = 56,408.61/x
  3. Step 3: Cross multiply
    104,156.35x = 143,735.05 × 56,408.61
  4. Step 4: Simplify right side
    104,156.35x = 8,107,894,378.78
  5. Step 5: Solve for x
    x = 8,107,894,378.78/104,156.35
  6. Step 6: Final answer
    x = 77,843.50

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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.