Home / 139,505.24-192,612.29-93,633.66

Finding the Fourth Proportional to 139,505.24, 192,612.29 and 93,633.66

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Solution

The fourth proportional to 139,505.24, 192,612.29 and 93,633.66 is: 129,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,505.24 : 192,612.29 = 93,633.66 : x
  2. Step 2: Convert to fraction form
    139,505.24/192,612.29 = 93,633.66/x
  3. Step 3: Cross multiply
    139,505.24x = 192,612.29 × 93,633.66
  4. Step 4: Simplify right side
    139,505.24x = 18,034,993,673.68
  5. Step 5: Solve for x
    x = 18,034,993,673.68/139,505.24
  6. Step 6: Final answer
    x = 129,278.25

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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.