Home / 104,564.38-144,298.56-56,817.90

Finding the Fourth Proportional to 104,564.38, 144,298.56 and 56,817.90

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Solution

The fourth proportional to 104,564.38, 144,298.56 and 56,817.90 is: 78,408.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,564.38 : 144,298.56 = 56,817.90 : x
  2. Step 2: Convert to fraction form
    104,564.38/144,298.56 = 56,817.90/x
  3. Step 3: Cross multiply
    104,564.38x = 144,298.56 × 56,817.90
  4. Step 4: Simplify right side
    104,564.38x = 8,198,741,152.22
  5. Step 5: Solve for x
    x = 8,198,741,152.22/104,564.38
  6. Step 6: Final answer
    x = 78,408.55

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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.