Home / 139,919.53-193,083.33-76,255.96

Finding the Fourth Proportional to 139,919.53, 193,083.33 and 76,255.96

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Solution

The fourth proportional to 139,919.53, 193,083.33 and 76,255.96 is: 105,230.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,919.53 : 193,083.33 = 76,255.96 : x
  2. Step 2: Convert to fraction form
    139,919.53/193,083.33 = 76,255.96/x
  3. Step 3: Cross multiply
    139,919.53x = 193,083.33 × 76,255.96
  4. Step 4: Simplify right side
    139,919.53x = 14,723,754,689.15
  5. Step 5: Solve for x
    x = 14,723,754,689.15/139,919.53
  6. Step 6: Final answer
    x = 105,230.16

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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.