Home / 139,919.03-193,082.64-76,255.46

Finding the Fourth Proportional to 139,919.03, 193,082.64 and 76,255.46

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Solution

The fourth proportional to 139,919.03, 193,082.64 and 76,255.46 is: 105,229.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,919.03 : 193,082.64 = 76,255.46 : x
  2. Step 2: Convert to fraction form
    139,919.03/193,082.64 = 76,255.46/x
  3. Step 3: Cross multiply
    139,919.03x = 193,082.64 × 76,255.46
  4. Step 4: Simplify right side
    139,919.03x = 14,723,605,531.21
  5. Step 5: Solve for x
    x = 14,723,605,531.21/139,919.03
  6. Step 6: Final answer
    x = 105,229.47

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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.