Home / 139,919.67-193,083.51-76,256.10

Finding the Fourth Proportional to 139,919.67, 193,083.51 and 76,256.10

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Solution

The fourth proportional to 139,919.67, 193,083.51 and 76,256.10 is: 105,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,919.67 : 193,083.51 = 76,256.10 : x
  2. Step 2: Convert to fraction form
    139,919.67/193,083.51 = 76,256.10/x
  3. Step 3: Cross multiply
    139,919.67x = 193,083.51 × 76,256.10
  4. Step 4: Simplify right side
    139,919.67x = 14,723,795,446.91
  5. Step 5: Solve for x
    x = 14,723,795,446.91/139,919.67
  6. Step 6: Final answer
    x = 105,230.35

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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.