Home / 128,426.20-193,601.83-119,863

Finding the Fourth Proportional to 128,426.20, 193,601.83 and 119,863

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Solution

The fourth proportional to 128,426.20, 193,601.83 and 119,863 is: 180,692.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,426.20 : 193,601.83 = 119,863 : x
  2. Step 2: Convert to fraction form
    128,426.20/193,601.83 = 119,863/x
  3. Step 3: Cross multiply
    128,426.20x = 193,601.83 × 119,863
  4. Step 4: Simplify right side
    128,426.20x = 23,205,696,149.29
  5. Step 5: Solve for x
    x = 23,205,696,149.29/128,426.20
  6. Step 6: Final answer
    x = 180,692.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.