Home / 140,911.58-194,457.27-76,380.57

Finding the Fourth Proportional to 140,911.58, 194,457.27 and 76,380.57

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Solution

The fourth proportional to 140,911.58, 194,457.27 and 76,380.57 is: 105,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,911.58 : 194,457.27 = 76,380.57 : x
  2. Step 2: Convert to fraction form
    140,911.58/194,457.27 = 76,380.57/x
  3. Step 3: Cross multiply
    140,911.58x = 194,457.27 × 76,380.57
  4. Step 4: Simplify right side
    140,911.58x = 14,852,757,409.67
  5. Step 5: Solve for x
    x = 14,852,757,409.67/140,911.58
  6. Step 6: Final answer
    x = 105,404.80

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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.