Home / 119,286.27-178,835.55-81,731.84

Finding the Fourth Proportional to 119,286.27, 178,835.55 and 81,731.84

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Solution

The fourth proportional to 119,286.27, 178,835.55 and 81,731.84 is: 122,533.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,286.27 : 178,835.55 = 81,731.84 : x
  2. Step 2: Convert to fraction form
    119,286.27/178,835.55 = 81,731.84/x
  3. Step 3: Cross multiply
    119,286.27x = 178,835.55 × 81,731.84
  4. Step 4: Simplify right side
    119,286.27x = 14,616,557,358.24
  5. Step 5: Solve for x
    x = 14,616,557,358.24/119,286.27
  6. Step 6: Final answer
    x = 122,533.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.