Home / 84,815.10-127,222.65-73,539.90

Finding the Fourth Proportional to 84,815.10, 127,222.65 and 73,539.90

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Solution

The fourth proportional to 84,815.10, 127,222.65 and 73,539.90 is: 110,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,815.10 : 127,222.65 = 73,539.90 : x
  2. Step 2: Convert to fraction form
    84,815.10/127,222.65 = 73,539.90/x
  3. Step 3: Cross multiply
    84,815.10x = 127,222.65 × 73,539.90
  4. Step 4: Simplify right side
    84,815.10x = 9,355,940,958.74
  5. Step 5: Solve for x
    x = 9,355,940,958.74/84,815.10
  6. Step 6: Final answer
    x = 110,309.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.