Home / 104,155.30-143,734.56-56,408.50

Finding the Fourth Proportional to 104,155.30, 143,734.56 and 56,408.50

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Solution

The fourth proportional to 104,155.30, 143,734.56 and 56,408.50 is: 77,843.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,155.30 : 143,734.56 = 56,408.50 : x
  2. Step 2: Convert to fraction form
    104,155.30/143,734.56 = 56,408.50/x
  3. Step 3: Cross multiply
    104,155.30x = 143,734.56 × 56,408.50
  4. Step 4: Simplify right side
    104,155.30x = 8,107,850,927.76
  5. Step 5: Solve for x
    x = 8,107,850,927.76/104,155.30
  6. Step 6: Final answer
    x = 77,843.86

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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.