Home / 202,738.89-279,755.23-112,082.61

Finding the Fourth Proportional to 202,738.89, 279,755.23 and 112,082.61

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Solution

The fourth proportional to 202,738.89, 279,755.23 and 112,082.61 is: 154,660.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,738.89 : 279,755.23 = 112,082.61 : x
  2. Step 2: Convert to fraction form
    202,738.89/279,755.23 = 112,082.61/x
  3. Step 3: Cross multiply
    202,738.89x = 279,755.23 × 112,082.61
  4. Step 4: Simplify right side
    202,738.89x = 31,355,696,339.55
  5. Step 5: Solve for x
    x = 31,355,696,339.55/202,738.89
  6. Step 6: Final answer
    x = 154,660.49

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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.