Home / 118,738.08-178,107.12-53,028

Finding the Fourth Proportional to 118,738.08, 178,107.12 and 53,028

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Solution

The fourth proportional to 118,738.08, 178,107.12 and 53,028 is: 79,542

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,738.08 : 178,107.12 = 53,028 : x
  2. Step 2: Convert to fraction form
    118,738.08/178,107.12 = 53,028/x
  3. Step 3: Cross multiply
    118,738.08x = 178,107.12 × 53,028
  4. Step 4: Simplify right side
    118,738.08x = 9,444,664,359.36
  5. Step 5: Solve for x
    x = 9,444,664,359.36/118,738.08
  6. Step 6: Final answer
    x = 79,542

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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.