Home / 102,076.42-140,866.33-66,279.94

Finding the Fourth Proportional to 102,076.42, 140,866.33 and 66,279.94

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Solution

The fourth proportional to 102,076.42, 140,866.33 and 66,279.94 is: 91,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,076.42 : 140,866.33 = 66,279.94 : x
  2. Step 2: Convert to fraction form
    102,076.42/140,866.33 = 66,279.94/x
  3. Step 3: Cross multiply
    102,076.42x = 140,866.33 × 66,279.94
  4. Step 4: Simplify right side
    102,076.42x = 9,336,611,900.42
  5. Step 5: Solve for x
    x = 9,336,611,900.42/102,076.42
  6. Step 6: Final answer
    x = 91,466.88

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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.