Home / 140,644.15-194,085.32-76,977.84

Finding the Fourth Proportional to 140,644.15, 194,085.32 and 76,977.84

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Solution

The fourth proportional to 140,644.15, 194,085.32 and 76,977.84 is: 106,227.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,644.15 : 194,085.32 = 76,977.84 : x
  2. Step 2: Convert to fraction form
    140,644.15/194,085.32 = 76,977.84/x
  3. Step 3: Cross multiply
    140,644.15x = 194,085.32 × 76,977.84
  4. Step 4: Simplify right side
    140,644.15x = 14,940,269,052.24
  5. Step 5: Solve for x
    x = 14,940,269,052.24/140,644.15
  6. Step 6: Final answer
    x = 106,227.45

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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.