Home / 118,723.76-178,114.72-54,651.92

Finding the Fourth Proportional to 118,723.76, 178,114.72 and 54,651.92

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Solution

The fourth proportional to 118,723.76, 178,114.72 and 54,651.92 is: 81,991.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,723.76 : 178,114.72 = 54,651.92 : x
  2. Step 2: Convert to fraction form
    118,723.76/178,114.72 = 54,651.92/x
  3. Step 3: Cross multiply
    118,723.76x = 178,114.72 × 54,651.92
  4. Step 4: Simplify right side
    118,723.76x = 9,734,311,428.26
  5. Step 5: Solve for x
    x = 9,734,311,428.26/118,723.76
  6. Step 6: Final answer
    x = 81,991.27

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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.