Home / 104,156.12-143,677.90-84,795.86

Finding the Fourth Proportional to 104,156.12, 143,677.90 and 84,795.86

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Solution

The fourth proportional to 104,156.12, 143,677.90 and 84,795.86 is: 116,971.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,156.12 : 143,677.90 = 84,795.86 : x
  2. Step 2: Convert to fraction form
    104,156.12/143,677.90 = 84,795.86/x
  3. Step 3: Cross multiply
    104,156.12x = 143,677.90 × 84,795.86
  4. Step 4: Simplify right side
    104,156.12x = 12,183,289,951.13
  5. Step 5: Solve for x
    x = 12,183,289,951.13/104,156.12
  6. Step 6: Final answer
    x = 116,971.43

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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.