Home / 140,126.85-193,379.73-76,468.14

Finding the Fourth Proportional to 140,126.85, 193,379.73 and 76,468.14

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Solution

The fourth proportional to 140,126.85, 193,379.73 and 76,468.14 is: 105,528.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,126.85 : 193,379.73 = 76,468.14 : x
  2. Step 2: Convert to fraction form
    140,126.85/193,379.73 = 76,468.14/x
  3. Step 3: Cross multiply
    140,126.85x = 193,379.73 × 76,468.14
  4. Step 4: Simplify right side
    140,126.85x = 14,787,388,266.80
  5. Step 5: Solve for x
    x = 14,787,388,266.80/140,126.85
  6. Step 6: Final answer
    x = 105,528.59

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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.