Home / 81,835.04-122,596.20-68,592.80

Finding the Fourth Proportional to 81,835.04, 122,596.20 and 68,592.80

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Solution

The fourth proportional to 81,835.04, 122,596.20 and 68,592.80 is: 102,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,835.04 : 122,596.20 = 68,592.80 : x
  2. Step 2: Convert to fraction form
    81,835.04/122,596.20 = 68,592.80/x
  3. Step 3: Cross multiply
    81,835.04x = 122,596.20 × 68,592.80
  4. Step 4: Simplify right side
    81,835.04x = 8,409,216,627.36
  5. Step 5: Solve for x
    x = 8,409,216,627.36/81,835.04
  6. Step 6: Final answer
    x = 102,758.14

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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.