Home / 118,703.64-178,082.13-39,815.85

Finding the Fourth Proportional to 118,703.64, 178,082.13 and 39,815.85

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Solution

The fourth proportional to 118,703.64, 178,082.13 and 39,815.85 is: 59,732.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,703.64 : 178,082.13 = 39,815.85 : x
  2. Step 2: Convert to fraction form
    118,703.64/178,082.13 = 39,815.85/x
  3. Step 3: Cross multiply
    118,703.64x = 178,082.13 × 39,815.85
  4. Step 4: Simplify right side
    118,703.64x = 7,090,491,375.76
  5. Step 5: Solve for x
    x = 7,090,491,375.76/118,703.64
  6. Step 6: Final answer
    x = 59,732.72

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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.