Home / 148,288.63-204,638.49-80,305.71

Finding the Fourth Proportional to 148,288.63, 204,638.49 and 80,305.71

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Solution

The fourth proportional to 148,288.63, 204,638.49 and 80,305.71 is: 110,821.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,288.63 : 204,638.49 = 80,305.71 : x
  2. Step 2: Convert to fraction form
    148,288.63/204,638.49 = 80,305.71/x
  3. Step 3: Cross multiply
    148,288.63x = 204,638.49 × 80,305.71
  4. Step 4: Simplify right side
    148,288.63x = 16,433,639,232.78
  5. Step 5: Solve for x
    x = 16,433,639,232.78/148,288.63
  6. Step 6: Final answer
    x = 110,821.98

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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.