Home / 104,155.62-143,677.20-84,795.36

Finding the Fourth Proportional to 104,155.62, 143,677.20 and 84,795.36

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Solution

The fourth proportional to 104,155.62, 143,677.20 and 84,795.36 is: 116,970.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,155.62 : 143,677.20 = 84,795.36 : x
  2. Step 2: Convert to fraction form
    104,155.62/143,677.20 = 84,795.36/x
  3. Step 3: Cross multiply
    104,155.62x = 143,677.20 × 84,795.36
  4. Step 4: Simplify right side
    104,155.62x = 12,183,159,676.99
  5. Step 5: Solve for x
    x = 12,183,159,676.99/104,155.62
  6. Step 6: Final answer
    x = 116,970.74

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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.