Home / 140,056.85-193,270.76-79,619.11

Finding the Fourth Proportional to 140,056.85, 193,270.76 and 79,619.11

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Solution

The fourth proportional to 140,056.85, 193,270.76 and 79,619.11 is: 109,869.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,056.85 : 193,270.76 = 79,619.11 : x
  2. Step 2: Convert to fraction form
    140,056.85/193,270.76 = 79,619.11/x
  3. Step 3: Cross multiply
    140,056.85x = 193,270.76 × 79,619.11
  4. Step 4: Simplify right side
    140,056.85x = 15,388,044,933.87
  5. Step 5: Solve for x
    x = 15,388,044,933.87/140,056.85
  6. Step 6: Final answer
    x = 109,869.99

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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.